Conformal adjusting jig

Abstract

The utility model provides a shape follow-up adjusting jig, and relates to the technical field of tool clamps. The shape follow-up adjusting jig comprises a base, a guide plate is arranged on the base, a plurality of ejector pin holes parallel to one another are formed in the guide plate in the vertical direction, spring grooves in one-to-one correspondence with the ejector pin holes are formed in the base, a locking assembly is arranged between the guide plate and the base, and ejector pin springs are assembled in the spring grooves. The floating ejector pin which movably penetrates through the locking assembly is assembled in the spring groove and the ejector pin hole, and after the floating ejector pin moves downwards under the pressure of a workpiece, the position of the floating ejector pin which does not move downwards can be locked through the locking assembly. The position of the floating ejector pin which does not move downwards can be rapidly locked through the locking assembly, compared with the prior art, the structure is optimized, a cooling pipe, a cabin and other components are not arranged, meanwhile, application of refrigerants is reduced, and the purchasing cost of the refrigerants and the operation cost and maintenance cost of related equipment are effectively saved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tooling fixtures, in particular to a conformal adjustment jig. BACKGROUND

[0002] In the machining and engraving process of machining special-shaped parts, a special profiled clamp jig needs to be made by engineers according to the shape of the product, and a numerical control machine tool is used to process the clamp jig for clamping the workpiece for machining. However, the design and processing of the special profiled clamp jig not only requires a large amount of processing cost and time cost, but also increases the management cost.

[0003] Chinese Patent No. CN206185556U discloses a conformal adjustment tool, which uses the principle of automatic expansion of the pressure-receiving needle to profile the workpiece, and uses frozen workpieces, which is fast, greatly shortens the design and manufacturing cycle of the tooling fixture and the cost, and improves the effective use rate of the equipment. The conformal adjustment tool can quickly clamp complex-shaped workpieces, and the profiled fixing of new products is fast, which shortens the product production cycle and reduces the production cost. The conformal adjustment tool has simple design structure, convenient use, high stability, high flexibility and strong universality, and revolutionizes the traditional machining and clamping method, improves the efficiency, reduces the cost, and provides more convenience for mechanical workers.

[0004] The conformal adjustment tool uses frozen liquid and refrigerant to freeze and hold the machining workpiece and the floating needle. However, the acquisition, storage and circulation of the refrigerant consume energy, and the cost of the refrigerant itself is also high. At the same time, in order to ensure the normal operation of the system, the cooling pipe, cabin and related temperature control equipment need to be checked and maintained regularly, which undoubtedly increases the operation cost and maintenance cost of the equipment. SUMMARY

[0005] The purpose of the embodiments of the present application is to provide a conformal adjustment jig, which can solve the technical problem of high raw material cost, equipment operation cost and maintenance cost when the conformal adjustment tool of the prior art uses frozen liquid and refrigerant to freeze and hold the machining workpiece and the floating needle.

[0006] The embodiment of the present application provides a shape-adjusting jig, which comprises a base, a guide plate arranged on the base, a plurality of parallel top pin holes arranged in the vertical direction on the guide plate, a spring groove corresponding to the top pin hole on the base, a locking assembly arranged between the guide plate and the base, a top pin spring arranged in the spring groove, and a floating top pin arranged in the spring groove and the top pin hole and penetrating through the locking assembly. When the floating top pin is moved downward under the pressure of a workpiece, the position of the floating top pin not moved downward can be locked through the locking assembly. When the floating top pin moved downward loses the pressure of the workpiece, the floating top pin can be reset under the action of the top pin spring.

[0007] Further, the locking assembly comprises a locking block and a locking bolt, the base is provided with a containing groove, the locking block is movably arranged in the containing groove, the locking block is provided with a through hole for the floating top pin to penetrate, and the guide plate is provided with a locking screw hole matched with the locking bolt. When the locking bolt is screwed into the locking screw hole, the locking bolt can push the locking block to move, and the floating top pin is locked under the cooperation of the guide plate and the base.

[0008] Further, the top of the locking block is provided with a guide protrusion, the bottom of the guide plate is provided with a guide groove matched with the guide protrusion, and the guide protrusion and the guide groove are in sliding connection.

[0009] Further, the top of the locking block is provided with a boost protrusion, the bottom of the guide plate is provided with a boost groove matched with the boost protrusion, the boost protrusion and the boost groove are in sliding connection, and one end of the boost protrusion is located on one side of the locking screw hole.

[0010] Further, the floating top pin comprises a needle head, a needle section and a needle handle, the needle head is arranged in the top pin hole, the outer diameter of the needle section is greater than the inner diameter of the top pin hole, the needle section is arranged in matching with the through hole and the spring groove, the needle handle is located in the spring groove, the needle section is clamped on the upper end of the top pin spring, and the lower end of the top pin spring abuts against the bottom of the spring groove.

[0011] Further, the guide plate and the base are detachably connected, four corners of the guide plate are provided with mounting countersunk holes, the base is provided with mounting screw holes corresponding to the mounting countersunk holes, and the guide plate can be fixed on the base by penetrating the mounting countersunk holes with fixing bolts and screwing the fixing bolts into the mounting screw holes.

[0012] Further, a group of positioning pins are inserted into the top of the base, the bottom of the guide plate is provided with positioning holes matched with the positioning pins, and the positioning pins can be inserted into the positioning holes.

[0013] The utility model discloses beneficial effect has:

[0014] The floating ejector pin provided by the utility model is moved to the appropriate position under the pressure of the workpiece, and the position of the floating ejector pin not moved downward is locked quickly through the locking assembly, compared with the freezing fixed mode of the prior art, the structure is optimized, there is no cooling pipe, cabin and other components, and the use of refrigerant is reduced, and the procurement cost of refrigerant, the operation cost of related equipment and the maintenance cost are effectively saved. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced below, and it should be understood that the following drawings only show some embodiments of the present application, and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0016] Figure 1 The structure schematic diagram in some embodiments of the present application;

[0017] Figure 2 The rear view in some embodiments of the present application;

[0018] Figure 3 The sectional view in some embodiments of the present application;

[0019] Figure 4 The structure exploded schematic view in some embodiments of the present application;

[0020] The reference signs are respectively:

[0021] 1, base; 11, spring groove; 12, containing groove; 2, guide plate; 21, ejector pin hole; 22, locking screw hole; 23, guide groove; 24, boost recess; 25, mounting countersunk hole; 3, locking assembly; 31, locking block; 311, through hole; 312, guide protrusion; 313, boost protrusion; 32, locking bolt; 4, ejector pin spring; 5, floating ejector pin; 51, needle head; 52, needle section; 53, needle handle; 6, fixing bolt; 7, positioning pin. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, not all embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the application claimed, but merely represents selected embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the application.

[0024] It should be noted that similar reference numbers and letters represent similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0025] In the description of the application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the application is usually placed, and are only for the convenience of describing the application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application. In addition, the terms "first", "second", "third", and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0026] In addition, the terms "horizontal", "vertical", "overhanging", and the like do not mean that the component must be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that it is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0027] In the description of the application, it should also be noted that unless otherwise explicitly specified and limited, the terms "provided", "mounted", "connected", "connected" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements inside. For those of ordinary skill in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances. Specific embodiments:

[0029] As Figures 1-4As shown, the present application provides a contour adjustment jig, which comprises a base 1, the base 1 is provided with a guide plate 2, the guide plate 2 is vertically provided with a plurality of mutually parallel needle holes 21, the base 1 is provided with a spring groove 11 corresponding to the needle hole 21, the guide plate 2 and the base 1 are provided with a locking assembly 3, the spring groove 11 is assembled with a needle spring 4, the spring groove 11 and the needle hole 21 are assembled with a floating needle 5 which penetrates the locking assembly 3, when the floating needle 5 is moved downward by the pressure of the workpiece, the position of the floating needle 5 which is not moved downward can be locked by the locking assembly 3, when the floating needle 5 which is moved downward loses the pressure of the workpiece, it can be reset under the action of the needle spring 4, by setting a plurality of mutually parallel needle holes 21 and the corresponding structure of the needle spring 4 and the floating needle 5, different shapes of workpieces can be well adapted, when the workpiece is placed on the jig, the irregular shape of the workpiece will exert different degrees of pressure on the floating needle 5 at each position, since the floating needle 5 can move in the needle hole 21 and the spring groove 11, the floating needle 5 automatically adjusts the position according to the ups and downs of the workpiece surface, tightly fits the shape of the workpiece, when the floating needle 5 is moved to the appropriate position by the pressure of the workpiece, the position of the floating needle 5 which is not moved downward can be quickly locked by the locking assembly 3, so that the floating needle 5 which is not moved downward forms a contour clamping position around the workpiece, compared with the existing technology which adopts the freezing fixed mode, the structure of the present application is optimized, there is no cooling pipe, cabin and other components, at the same time, the use of refrigerant is reduced, which effectively saves the procurement cost of refrigerant, the operation cost and maintenance cost of related equipment.

[0030] As Figure 1 and Figure 4 shown, the locking assembly 3 comprises a locking block 31 and a locking bolt 32, the base 1 is provided with a containing groove 12, the locking block 31 is movably arranged in the containing groove 12, the locking block 31 is provided with a through hole 311 for the floating needle 5 to penetrate, the guide plate 2 is provided with a locking thread hole 22 matched with the locking bolt 32, when the locking bolt 32 is screwed into the locking thread hole 22, the locking bolt 32 can push the locking block 31 to move, under the cooperation of the guide plate 2 and the base 1, the floating needle 5 is locked by shearing force, this locking mode can provide strong and stable fixing force, which ensures that the floating needle 5 can still be firmly kept at the required position when it is subjected to vibration, external force impact and other conditions in the machining process, since the size of the shearing force can be controlled by adjusting the tightening degree of the locking bolt 32, so the jig can adapt to various machining conditions, for high-precision machining tasks, the tightening degree of the locking bolt 32 can be appropriately increased to enhance the locking effect of the floating needle 5; for some machining scenes with slightly lower precision requirements or smaller stress, the tightening degree can be appropriately reduced, which can stabilize the position of the floating needle 5 while facilitating subsequent unlocking operation.

[0031] AsFigure 4 As shown in the drawings, the top of the locking block 31 is provided with a guide protrusion 312, and the bottom of the guide plate 2 is provided with a guide groove 23 matched with the guide protrusion 312. The guide protrusion 312 and the guide groove 23 are in sliding connection. When the locking block 31 is moved by the locking bolt 32, the guide protrusion 312 slides along the guide groove 23, so that the locking block 31 can only move in a predetermined direction. This precise guidance can ensure that the shearing force exerted by the locking block 31 on the floating ejector pin 5 is in the correct direction, thereby achieving reliable locking.

[0032] As shown in the drawings, the top of the locking block 31 is provided with a guide protrusion 312, and the bottom of the guide plate 2 is provided with a guide groove 23 matched with the guide protrusion 312. The guide protrusion 312 and the guide groove 23 are in sliding connection. When the locking block 31 is moved by the locking bolt 32, the guide protrusion 312 slides along the guide groove 23, so that the locking block 31 can only move in a predetermined direction. This precise guidance can ensure that the shearing force exerted by the locking block 31 on the floating ejector pin 5 is in the correct direction, thereby achieving reliable locking. Figure 4 As shown in the drawings, the top of the locking block 31 is provided with a guide protrusion 312, and the bottom of the guide plate 2 is provided with a guide groove 23 matched with the guide protrusion 312. The guide protrusion 312 and the guide groove 23 are in sliding connection. When the locking block 31 is moved by the locking bolt 32, the guide protrusion 312 slides along the guide groove 23, so that the locking block 31 can only move in a predetermined direction. This precise guidance can ensure that the shearing force exerted by the locking block 31 on the floating ejector pin 5 is in the correct direction, thereby achieving reliable locking.

[0033] As shown in the drawings, the top of the locking block 31 is provided with a guide protrusion 312, and the bottom of the guide plate 2 is provided with a guide groove 23 matched with the guide protrusion 312. The guide protrusion 312 and the guide groove 23 are in sliding connection. When the locking block 31 is moved by the locking bolt 32, the guide protrusion 312 slides along the guide groove 23, so that the locking block 31 can only move in a predetermined direction. This precise guidance can ensure that the shearing force exerted by the locking block 31 on the floating ejector pin 5 is in the correct direction, thereby achieving reliable locking. Figure 1 As shown in the drawings, the top of the locking block 31 is provided with a guide protrusion 312, and the bottom of the guide plate 2 is provided with a guide groove 23 matched with the guide protrusion 312. The guide protrusion 312 and the guide groove 23 are in sliding connection. When the locking block 31 is moved by the locking bolt 32, the guide protrusion 312 slides along the guide groove 23, so that the locking block 31 can only move in a predetermined direction. This precise guidance can ensure that the shearing force exerted by the locking block 31 on the floating ejector pin 5 is in the correct direction, thereby achieving reliable locking. Figure 4 As shown in the drawings, the top of the locking block 31 is provided with a guide protrusion 312, and the bottom of the guide plate 2 is provided with a guide groove 23 matched with the guide protrusion 312. The guide protrusion 312 and the guide groove 23 are in sliding connection. When the locking block 31 is moved by the locking bolt 32, the guide protrusion 312 slides along the guide groove 23, so that the locking block 31 can only move in a predetermined direction. This precise guidance can ensure that the shearing force exerted by the locking block 31 on the floating ejector pin 5 is in the correct direction, thereby achieving reliable locking.

[0034] As shown in the drawings, the top of the locking block 31 is provided with a guide protrusion 312, and the bottom of the guide plate 2 is provided with a guide groove 23 matched with the guide protrusion 312. The guide protrusion 312 and the guide groove 23 are in sliding connection. When the locking block 31 is moved by the locking bolt 32, the guide protrusion 312 slides along the guide groove 23, so that the locking block 31 can only move in a predetermined direction. This precise guidance can ensure that the shearing force exerted by the locking block 31 on the floating ejector pin 5 is in the correct direction, thereby achieving reliable locking. Figures 1-4As shown, the guide plate 2 is detachably connected with the base 1, four corners of the guide plate 2 are provided with mounting counterbores 25, the base 1 is provided with mounting threaded holes corresponding to the mounting counterbores 25 one by one, the guide plate 2 can be fixed on the base 1 by fixing bolts 6 passing through the mounting counterbores 25 and being screwed into the mounting threaded holes, the guide plate 2 and the base 1 are connected through the fixing bolts 6, when assembling the jig, the operator only needs to align the mounting counterbores 25 on the guide plate 2 with the mounting threaded holes on the base 1, then uses the fixing bolts 6 to pass through the counterbores and screw into the threaded holes to complete the installation of the guide plate 2, which is simple and convenient.

[0035] As shown in the figure, Figure 4 A group of positioning pins 7 are inserted into the top of the base 1, the bottom of the guide plate 2 is provided with positioning holes matched with the positioning pins 7, the positioning pins 7 can be inserted into the positioning holes, when installing the guide plate 2, the cooperation of the positioning pins 7 and the positioning holes provides accurate initial positioning for the guide plate 2, when the positioning pins 7 are inserted into the positioning holes, the correct position of the guide plate 2 on the base 1 can be quickly determined, which can improve the assembly efficiency of the jig.

[0036] In this embodiment, the locking bolt 32 and the fixing bolt 6 are all internal hexagonal bolts, the threads on the locking bolt 32 and the fixing bolt 6 are not shown, Figure 4 In this embodiment, only one needle spring 4 is shown.

[0037] The above is only the preferred embodiment of the present application and is not used to limit the present application, for those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A form adjustment jig characterized by: The application relates to a floating ejector pin device, which comprises a base, a guide plate provided on the base, a plurality of parallel top pin holes vertically provided on the guide plate, a spring groove corresponding to the top pin holes, a locking assembly provided between the guide plate and the base, a top pin spring assembled in the spring groove, and a floating top pin assembled in the spring groove and the top pin hole and penetrating through the locking assembly.

2. The form adjustment tool of claim 1, wherein: The locking assembly comprises a locking block and a locking bolt, the base is provided with a containing groove, the locking block is movably arranged in the containing groove, the locking block is provided with a through hole for the floating top pin to penetrate, the guide plate is provided with a locking screw hole matched with the locking bolt, and the locking bolt can push the locking block to move and lock the floating top pin under the cooperation of the guide plate and the base when the locking bolt is screwed into the locking screw hole.

3. The form adjustment tool of claim 2, wherein: The top of the locking block is provided with a guide protrusion, the bottom of the guide plate is provided with a guide groove matched with the guide protrusion, and the guide protrusion and the guide groove are in sliding connection.

4. The conformal adjustment fixture of claim 3, wherein: The top of the locking block is provided with a boosting protrusion, the bottom of the guide plate is provided with a boosting groove matched with the boosting protrusion, the boosting protrusion and the boosting groove are in sliding connection, and one end of the boosting protrusion is located on one side of the locking screw hole.

5. The conformal adjustment fixture of claim 4, wherein: The floating top pin comprises a needle head, a needle section and a needle handle, the needle head is arranged in the top pin hole, the outer diameter of the needle section is larger than the inner diameter of the top pin hole, the needle section is matched with the through hole and the spring groove, the needle handle is arranged in the spring groove, the needle section is clamped on the upper end of the top pin spring, and the lower end of the top pin spring abuts against the bottom of the spring groove.

6. The conformal adjustment fixture of claim 1, wherein: The guide plate and the base are detachably connected, four corners of the guide plate are provided with mounting countersunk holes, the base is provided with mounting screw holes corresponding to the mounting countersunk holes, and the guide plate can be fixed on the base by fixing bolts penetrating through the mounting countersunk holes and being screwed into the mounting screw holes.

7. The conformal adjustment fixture of claim 1, wherein: The top of the base is inserted with a group of positioning pins, the bottom of the guide plate is provided with positioning holes matched with the positioning pins, and the positioning pins can be inserted into the positioning holes.

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