Four-axis automatic clamp capable of rapidly changing production line

Abstract

The invention provides a four-axis automatic clamp capable of achieving rapid production changing. A four-axis assembly comprises a four-axis rotary table and a four-axis tailstock; the supporting assembly comprises an installation bottom plate installed between the four-axis rotary table and the four-axis tailstock. A centering bench clamp and a mounting plate are respectively arranged on the mounting bottom plate; uniformly distributed blind rivets are arranged on the mounting plate; one end of the blind rivet is inserted into the mounting plate, and the other end of the blind rivet extends above the mounting plate; the bottom of the supporting block is provided with a matched insertion hole corresponding to the clamping part, and one side of the supporting block is provided with a matched locking wheel corresponding to the clamping part; a clamping groove and an avoiding hole which are matched with each other are formed in the locking wheel corresponding to the clamping part; the clamping jaw assembly comprises a mounting base and a clamping block which are detachably connected. The blind rivet is arranged on the mounting plate, so that the supporting block can be quickly assembled and disassembled relative to the mounting plate through the locking wheel; meanwhile, a plurality of blind rivets are arranged and are uniformly distributed on the mounting plate, so that the supporting blocks can be spliced into a corresponding supporting plane according to the shape and the size of the workpiece, and the requirement of quick production change is met.

Description

Technical Field

[0001] The present application relates to the technical field of tooling and fixtures, and in particular to a four-axis automatic fixture with rapid production changeover. Background Art

[0002] The four-axis fixture is installed on the CNC machine tool and is mainly used for multi-faceted cutting of the product. When using the four-axis fixture, the corresponding clamping block needs to be installed on the base, and then the clamping block is adjusted. There are flat clamping blocks, arc-shaped clamping blocks, etc. for workpieces of different shapes.

[0003] However, the existing four-axis fixture has high conversion costs, slow speed and limited production efficiency when in use; therefore, the above problems need to be solved urgently. Summary of the invention

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a four-axis automatic clamp with rapid production change.

[0005] The present application provides a four-axis automatic fixture with rapid production change, comprising A four-axis assembly, the four-axis assembly comprising a four-axis turntable and a four-axis tailstock arranged along a first direction; A support assembly, the support assembly comprising a mounting base plate mounted between the four-axis turntable and the four-axis tailstock; A centering vise and a mounting plate are respectively provided on the mounting bottom plate; The centering vise is located below the mounting plate, and its sliding direction is parallel to the first direction; The mounting plate is provided with evenly arranged rivets for mounting the support block; One end of the rivet is plugged and installed on the mounting plate, and the other end extends above the mounting plate to form a clamping portion; The bottom of the support block is provided with a matching plug hole corresponding to the clamping portion, and one side is provided with a matching locking wheel corresponding to the clamping portion; The rotation axis of the locking wheel is perpendicular to the axis of the plug hole, and a matching clamping groove and avoidance hole are provided corresponding to the clamping portion; A clamping jaw assembly, the clamping jaw assembly comprising a detachably connected mounting seat and a clamping block; The mounting seat is fixedly mounted on the centering vise; The clamping block is detachably mounted on the mounting seat and is suitable for workpieces of different shapes and sizes.

[0006] Furthermore, The mounting plate and the mounting base plate are connected via a mounting frame; The mounting frame includes support plates respectively located on both sides of the centering vise; The support plate extends along the first direction, and has a height relatively higher than that of the centering vise, and is used for supporting and installing the mounting plate.

[0007] Furthermore, The mounting plate is provided with mounting holes corresponding to the pull nails; The mounting hole is provided with an internal thread, which is connected to the rivet via a threaded sleeve; The threaded sleeve is provided with a through hole for installing the rivet, and is threadedly connected to the installation hole.

[0008] Furthermore, The pull nail is T-shaped, and one end with a relatively small diameter extends into the interior of the threaded sleeve and is provided with a stopper for limiting disengagement; A spring is also provided in the mounting hole for resisting against the pull nail and driving the pull nail to reset itself.

[0009] Furthermore, The end of the threaded sleeve away from the spring is also provided with a countersunk hole; The diameter of the countersunk hole matches the end diameter of the pull nail, so as to form an avoidance groove for the pull nail.

[0010] Furthermore, The mounting plate is also provided with an air hole for connecting to an external air source; The air hole is located on the side of the mounting plate; An air passage for connecting the air hole and the mounting hole is provided inside the mounting plate.

[0011] Furthermore, The mounting plate is also provided with an airtight detection mechanism, and a mounting groove is provided corresponding to the airtight detection mechanism; The mounting groove is located in the middle of the mounting plate, and its extending direction is perpendicular to the first direction; The airtight detection mechanism is slidably connected to the mounting groove, one end of which is connected to the air hole through a hose, and one end of which is provided with an air outlet; The end surface of the air outlet hole and the end surface of the support block are located in the same plane and are used to abut against the workpiece.

[0012] Furthermore, An auxiliary pressing assembly is also provided on one side of the four-axis turntable; The auxiliary pressing assembly includes a support arm and a rotating arm; The support arm is fixedly mounted on one side of the four-axis turntable; One end of the rotating arm is rotatably mounted on the supporting arm, and one end is provided with a pressing head corresponding to the workpiece; The pressure head includes a cylinder vertically mounted on the rotating arm; The cylinder is fixedly installed above the rotating arm, and the piston rod extends to the bottom of the rotating arm.

[0013] Furthermore, The auxiliary pressing assembly is also provided with a flushing assembly on one side away from the four-axis turntable; The flushing assembly includes a square pipe and a connecting pipe; The square tube extends along the first direction, one end of which is connected to an external water source and the other end of which is a sealing structure; The number of the connecting pipes includes two, which are respectively vertically installed on the square pipe, and the sides close to each other are respectively provided with nozzles.

[0014] Furthermore, A tool detection component is also provided on one side of the four-axis turntable away from the auxiliary pressing component; The tool detection assembly includes a tool base plate fixedly mounted on one side of the four-axis turntable; A tool reference and a tool detector are respectively provided at the bottom of the tool base plate, which are used to detect the fracture and wear state of the tool.

[0015] The advantages and positive effects of this application are: This technical solution allows the support block to be quickly loaded and unloaded relative to the mounting plate through a locking wheel by arranging pull pins on the mounting plate; at the same time, the number of pull pins includes multiple, and they are evenly arranged on the mounting plate, so that the support block can be spliced ​​into a corresponding support plane according to the shape and size of the workpiece, thereby meeting the needs of rapid production change. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the structure of a four-axis automatic fixture for rapid production change provided in an embodiment of the present application; Figure 2 A schematic diagram of the structure of a four-axis assembly of a four-axis automatic clamp for rapid production change provided in an embodiment of the present application; Figure 3 A schematic diagram of the structure of the support assembly of the four-axis automatic fixture with rapid production change provided in an embodiment of the present application; Figure 4 A schematic diagram of the structure of a pull nail of a four-axis automatic clamp with rapid production change provided in an embodiment of the present application; Figure 5 A schematic diagram of the structure of a clamping jaw assembly of a four-axis automatic clamp with rapid production change provided in an embodiment of the present application; Figure 6 A schematic diagram of the structure of an auxiliary clamping assembly of a four-axis automatic clamp with rapid production change provided in an embodiment of the present application; Figure 7A schematic diagram of the structure of a flushing assembly of a four-axis automatic fixture with rapid production change provided in an embodiment of the present application; Figure 8 A schematic diagram of the structure of a tool detection assembly of a four-axis automatic fixture with rapid production change provided in an embodiment of the present application.

[0017] The text markings in the figure are as follows: 100-four-axis assembly; 110-four-axis turntable; 120-four-axis tailstock; 200-support assembly; 210-mounting base plate; 220-centering vise; 230-mounting plate; 231-pull nail; 232-threaded sleeve; 233-spring; 234-air hole; 240-support block; 241-locking wheel; 250-mounting frame; 260-air tightness detection mechanism; 300-clamping jaw assembly; 310-mounting seat; 320-clamping block; 400-auxiliary clamping assembly; 410-support arm; 420-rotating arm; 430-pressing head; 500-flushing assembly; 510-square tube; 520-connecting pipe; 530-sprinkler; 600-tool detection assembly; 610-tool base plate; 620-tool reference; 630-tool detector. DETAILED DESCRIPTION

[0018] In order to enable those skilled in the art to better understand the technical solution of the present application, the present application is described in detail below in conjunction with the accompanying drawings. The description in this section is only exemplary and explanatory and should not have any limiting effect on the scope of protection of the present application.

[0019] Please refer to Figure 1-8 The present embodiment provides a four-axis automatic clamp for rapid production change, including a four-axis assembly 100, the four-axis assembly 100 includes a four-axis turntable 110 and a four-axis tailstock 120 arranged along a first direction; a support assembly 200, the support assembly 200 includes a mounting base plate 210 installed between the four-axis turntable 110 and the four-axis tailstock 120; a centering vise 220 and a mounting plate 230 are respectively provided on the mounting base plate 210; the centering vise 220 is located below the mounting plate 230, and the sliding direction is parallel to the first direction; the mounting plate 230 is provided with evenly arranged rivets 231 for mounting a support block 240; the rivets 231 are arranged on the mounting plate 230, and ... The end is plug-in installed on the mounting plate 230, and one end extends to the top of the mounting plate 230 to form a clamping part; the bottom of the support block 240 is provided with a matching plug-in hole corresponding to the clamping part, and one side is provided with a matching locking wheel 241 corresponding to the clamping part; the rotation axis of the locking wheel 241 is perpendicular to the axis of the plug-in hole, and the corresponding clamping part is provided with a matching clamping groove and avoidance hole; the clamping jaw assembly 300, the clamping jaw assembly 300 includes a detachably connected mounting seat 310 and a clamping block 320; the mounting seat 310 is fixedly installed on the centering vise 220; the clamping block 320 is detachably installed on the mounting seat 310, and is used for workpieces of different shapes and sizes.

[0020] In this embodiment, the four-axis assembly 100 includes a base; a four-axis turntable 110 and a four-axis tailstock 120 arranged along a first direction are installed on the base; at the same time, a support assembly is also provided between the four-axis turntable 110 and the four-axis tailstock 120, so as to support and install the workpiece and perform four-axis driving.

[0021] In this embodiment, the two ends of the mounting base plate 210 along the first direction are respectively mounted on the four-axis turntable 110 and the four-axis tailstock 120; the mounting plate 230 is suspended above the mounting base plate 210, and a side thereof away from the mounting base plate 210 is also provided with evenly arranged pull pins 231 for selectively mounting the support block 240, so as to use workpieces of different shapes.

[0022] In this embodiment, a matching plug-in hole is provided on the support block 240 corresponding to the pull nail 231. After plugging in, the locking connection between the support block 240 and the mounting plate 230 can be achieved by rotating the locking wheel 241. Otherwise, the support block 240 can be disassembled, thereby realizing the function of rapid production change.

[0023] In this embodiment, a strip-shaped through hole is provided on the locking wheel 241 along the circumferential direction; an avoidance hole with a relatively large diameter is provided at one end of the strip-shaped through hole; at the same time, the side of the strip-shaped through hole close to the avoidance hole is sloped, and the wall thickness on the side close to the avoidance hole is relatively thin; when the support block 240 and the rivet 231 are plugged into each other, the end of the rivet 231 can enter the interior of the locking wheel 241 through the avoidance hole, and by rotating the locking wheel 241, the end of the rivet 231 can be restricted from detaching from the locking wheel 241 through the strip-shaped through hole.

[0024] In this embodiment, the centering vise 220 is installed between the mounting plate 230 and the mounting base 210, and the clamping jaw assemblies 300 are respectively installed at both ends to clamp and fix the workpiece on the support block 240; at the same time, the mounting structure between the clamping block 320 and the mounting seat 310 is a detachable connection. When facing workpieces of different sizes and shapes, different clamping blocks 320 can be selected to ensure the stability of clamping.

[0025] In a preferred embodiment, the mounting plate 230 is connected to the mounting base plate 210 via a mounting frame 250; the mounting frame 250 includes support plates respectively located on both sides of the centering vise 220; the support plates extend along a first direction, and their height is relatively higher than that of the centering vise 220, and are used to support and install the mounting plate 230.

[0026] In this embodiment, the mounting frame 250 includes support plates located on both sides of the centering vise 220 ; the height of the support plates is relatively higher than the height of the centering vise 220 , so that the mounting plate 230 can be installed above the centering vise 220 .

[0027] In a preferred embodiment, a mounting hole is provided on the mounting plate 230 corresponding to the rivet 231; the mounting hole is provided with an internal thread, which is connected to the rivet 231 through a threaded sleeve 232; the threaded sleeve 232 is provided with a through hole for installing the rivet 231, which is threadedly connected to the mounting hole.

[0028] In this embodiment, the pull nail 231 can be telescopically installed on the threaded sleeve 232 and connected to the mounting plate 230 through the threaded sleeve 232; the mounting hole and the threaded sleeve 232 are threadedly connected, so that the threaded sleeve 232 can be disassembled and installed relative to the mounting plate 230.

[0029] In a preferred embodiment, the pull pin 231 is T-shaped, with the end with a relatively smaller diameter extending to the interior of the threaded sleeve 232 and equipped with a limit piece for limiting disengagement; a spring 233 is also provided in the mounting hole for resisting the pull pin 231 and driving the pull pin 231 to reset itself.

[0030] In this embodiment, a stepped hole is provided inside the threaded sleeve 232, and the hole diameter near the end of the rivet 231 is relatively small. When the end of the rivet 231 with a relatively small diameter passes through the small hole and enters the large hole, the rivet 231 can be effectively prevented from detaching from the threaded sleeve 232 by installing a nut.

[0031] In this embodiment, the spring 233 is located in the mounting hole, with one end abutting against the bottom of the mounting hole and the other end abutting against the rivet 231; when the rivet 231 is not subjected to external force, the spring 233 can ensure that the rivet 231 is in a lifted state; when the rivet 231 is compressed by external force, the spring 233 can also ensure that the rivet 231 is self-reset.

[0032] In a preferred embodiment, a countersunk hole is further provided at one end of the threaded sleeve 232 away from the spring 233 ; the diameter of the countersunk hole matches the end diameter of the rivet 231 , so as to form an avoidance groove for the rivet 231 .

[0033] In this embodiment, when the rivet 231 receives external force, the end portion can enter the countersunk hole for avoidance, thereby preventing damage caused by excessive force.

[0034] In a preferred embodiment, the mounting plate 230 is further provided with an air hole 234 for connecting to an external air source; the air hole 234 is located on the side of the mounting plate 230; and an air passage for connecting the air hole 234 and the mounting hole is provided inside the mounting plate 230.

[0035] In this embodiment, after the air hole 234 is connected to the external air source, the threaded sleeve 232 connected to the mounting hole can be connected to the air source through the air passage, so as to clean the upper surface of the mounting plate 230 .

[0036] In a preferred embodiment, an airtight detection mechanism 260 is also provided on the mounting plate 230, and a mounting groove is provided corresponding to the airtight detection mechanism 260; the mounting groove is located in the middle of the mounting plate 230, and the extension direction is perpendicular to the first direction; the airtight detection mechanism 260 is slidingly connected to the mounting groove, one end is connected to the air hole 234 through a hose, and the other end is provided with an air outlet; the end face of the air outlet is located in the same plane as the end face of the support block 240, and is used to abut against the workpiece.

[0037] In this embodiment, there are two airtightness detection mechanisms 260, which are respectively installed in the middle of the mounting plate 230. The arrangement direction is perpendicular to the first direction, and the distance between the two matches the width of the workpiece. They are used to detect the installation accuracy of the workpiece and whether its own deformation meets the requirements.

[0038] In this embodiment, a mounting groove extending perpendicular to the first direction is provided in the middle of the mounting plate 230; the airtightness detection mechanism 260 is slidably installed in the mounting groove, so that the installation position of the airtightness detection mechanism 260 is adjustable and thus suitable for workpieces of any size.

[0039] In a preferred embodiment, an auxiliary clamping assembly 400 is also provided at one side of the four-axis turntable 110; the auxiliary clamping assembly 400 includes a support arm 410 and a rotating arm 420; the support arm 410 is fixedly installed at one side of the four-axis turntable 110; one end of the rotating arm 420 is rotatably installed on the support arm 410, and the other end is provided with a pressing head 430 corresponding to the workpiece; the pressing head 430 includes a cylinder vertically installed on the rotating arm 420; the cylinder is fixedly installed above the rotating arm 420, and the piston rod extends to the bottom of the rotating arm 420.

[0040] In this embodiment, the support arm 410 is vertically mounted on the base and is located on one side of the four-axis turntable 110; the extension direction of the rotating arm 420 is perpendicular to the support arm 410, and is mounted at one end of the support arm 410 away from the base, and can rotate relative to the support arm 410, and the rotation axis is parallel to the extension direction of the support arm 410.

[0041] In this embodiment, the pressing head 130 is installed at one end of the rotating arm 420 away from the support arm 410, and includes a cylinder fixedly installed on the rotating arm 420; the cylinder body of the cylinder is fixedly installed above the rotating arm 420, and the piston rod passes through the rotating arm 420 and extends to the bottom of the rotating arm 420; when the workpiece is clamped, the workpiece is first placed at the specified position on the support assembly 200 by the robot, and then the rotating arm 420 is driven to rotate to the top of the workpiece, and the workpiece is pressed by the pressing head 130, and then the clamping jaw assembly is driven to clamp the workpiece, and finally the pressing head 130 and the rotating arm 420 are driven to reset.

[0042] In a preferred embodiment, a flushing assembly 500 is further provided on the side of the auxiliary clamping assembly 400 away from the four-axis turntable 110; the flushing assembly 500 includes a square tube 510 and a connecting tube 520; the square tube 510 extends along a first direction, one end of which is connected to an external water source, and the other end is a sealing structure; the number of connecting tubes 520 includes two, which are respectively vertically installed on the square tube 510, and nozzles 530 are respectively provided on the sides close to each other.

[0043] In this embodiment, the extension direction of the square tube 510 is parallel to the first direction and is installed on the base; the extension direction of the connecting tube 520 is perpendicular to the top surface of the base, and is respectively located at the four-axis turntable 110 and the four-axis tailstock 120, and is connected and installed with the square tube 510.

[0044] In a preferred embodiment, a tool detection assembly 600 is further provided on the side of the four-axis turntable 110 away from the auxiliary clamping assembly 400; the tool detection assembly 600 includes a tool base plate 610 fixedly mounted on one side of the four-axis turntable 110; a tool reference 620 and a tool detector 630 are respectively provided at the bottom of the tool base plate 610 for detecting the fracture and wear status of the tool.

[0045] This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and its core ideas of this application. The above is only the preferred implementation method of this application. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, they can also make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the scope of protection of this application.

Claims

1. A four-axis automatic fixture for quick production change, It is characterized in that include: A four-axis assembly (100), the four-axis assembly (100) comprising a four-axis turntable (110) and a four-axis tailstock (120) arranged along a first direction; A support assembly (200), the support assembly (200) comprising a mounting base plate (210) mounted between the four-axis turntable (110) and the four-axis tailstock (120); A centering vise (220) and a mounting plate (230) are respectively provided on the mounting base plate (210); The centering vise (220) is located below the mounting plate (230), and the sliding direction is parallel to the first direction; The mounting plate (230) is provided with evenly arranged pull nails (231) for mounting the support block (240); One end of the pull nail (231) is plugged and installed on the mounting plate (230), and the other end extends above the mounting plate (230) to form a clamping portion; A matching plug hole is provided at the bottom of the support block (240) corresponding to the clamping portion, and a matching locking wheel (241) is provided at one side corresponding to the clamping portion; The rotation axis of the locking wheel (241) is perpendicular to the axis of the plug hole, and a matching clamping groove and avoidance hole are provided corresponding to the clamping portion; A clamping jaw assembly (300), the clamping jaw assembly (300) comprising a detachably connected mounting seat (310) and a clamping block (320); The mounting seat (310) is fixedly mounted on the centering vise (220); The clamping block (320) is detachably mounted on the mounting seat (310) and is suitable for use with workpieces of different shapes and sizes.

2. The four-axis automatic fixture with rapid production change according to claim 1, It is characterized in that The mounting plate (230) and the mounting base plate (210) are connected via a mounting frame (250); The mounting frame (250) comprises support plates respectively located on both sides of the centering vise (220); The support plate extends along the first direction, and has a height relatively higher than that of the centering vise (220), and is used for supporting and installing the mounting plate (230).

3. The four-axis automatic fixture with rapid production change according to claim 1, It is characterized in that The mounting plate (230) is provided with mounting holes corresponding to the pull nails (231); The mounting hole is provided with an internal thread, and is connected to the pull nail (231) via a threaded sleeve (232); The threaded sleeve (232) is provided with a through hole for installing the pull nail (231), and is threadedly connected to the installation hole.

4. The four-axis automatic fixture with rapid production change according to claim 3, It is characterized in that The pull nail (231) is T-shaped, with an end with a relatively small diameter extending into the interior of the threaded sleeve (232) and being provided with a stopper for limiting disengagement; A spring (233) is also provided in the mounting hole, for abutting against the pull pin (231) and driving the pull pin (231) to reset itself.

5. The four-axis automatic fixture with rapid production change according to claim 4, It is characterized in that An end of the threaded sleeve (232) away from the spring (233) is further provided with a countersunk hole; The diameter of the countersunk hole matches the diameter of the end of the pull nail (231), and is used to form an avoidance groove for the pull nail (231).

6. The four-axis automatic fixture with rapid production change according to claim 3, It is characterized in that The mounting plate (230) is also provided with an air hole (234) for connecting to an external air source; The air hole (234) is located on a side surface of the mounting plate (230); An air passage for connecting the air hole (234) and the mounting hole is provided inside the mounting plate (230).

7. The four-axis automatic fixture with rapid production change according to claim 6, It is characterized in that An airtightness detection mechanism (260) is also provided on the mounting plate (230), and a mounting groove is provided corresponding to the airtightness detection mechanism (260); The mounting groove is located in the middle of the mounting plate (230), and its extension direction is perpendicular to the first direction; The airtight detection mechanism (260) is slidably connected to the mounting groove, one end of which is connected to the air hole (234) via a hose, and one end of which is provided with an air outlet; The end surface of the air outlet hole and the end surface of the support block (240) are located in the same plane and are used to abut against the workpiece.

8. The four-axis automatic fixture with rapid production change according to claim 1, It is characterized in that An auxiliary pressing assembly (400) is also provided on one side of the four-axis turntable (110); The auxiliary pressing assembly (400) comprises a support arm (410) and a rotating arm (420); The support arm (410) is fixedly mounted on one side of the four-axis turntable (110); One end of the rotating arm (420) is rotatably mounted on the supporting arm (410), and one end is provided with a pressing head (430) corresponding to the workpiece; The pressure head (430) comprises a cylinder vertically mounted on the rotating arm (420); The cylinder is fixedly mounted above the rotating arm (420), and the piston rod extends to the bottom of the rotating arm (420).

9. The four-axis automatic fixture with rapid production change according to claim 8, It is characterized in that A flushing assembly (500) is also provided on a side of the auxiliary pressing assembly (400) away from the four-axis turntable (110); The flushing assembly (500) comprises a square tube (510) and a connecting tube (520); The square tube (510) extends along the first direction, one end of which is connected to an external water source and the other end of which is a sealing structure; The number of the connecting pipes (520) includes two, which are respectively vertically mounted on the square pipe (510), and a nozzle (530) is respectively provided on one side close to each other.

10. The four-axis automatic fixture with rapid production change according to claim 8, It is characterized in that A tool detection assembly (600) is also provided on a side of the four-axis turntable (110) away from the auxiliary pressing assembly (400); The tool detection assembly (600) comprises a tool base plate (610) fixedly mounted on one side of the four-axis turntable (110); A tool reference (620) and a tool detector (630) are respectively provided at the bottom of the tool base plate (610) for detecting the fracture and wear state of the tool.

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