CN209407966U - A modular dovetail fixture set - Google Patents

Abstract

The utility model discloses a modular dovetail fixture set, which comprises a fixture main body, a fixed block, a locking block, a spring, a fixture positioning screw, a fixed positioning screw and a locking positioning screw; The fixed seat is in the shape of a square prism. There is a circle of card slots on the four sides of the fixed seat. There are threaded holes at the position between the card slot and the top of the fixed seat; one side of the fixed block is provided with a fixed clip and a fixed clip. , fix the positioning screw to connect the fixed block to the fixed seat, and insert the fixed clip into the slot; one side of the locking block is provided with a locking clip and a locking clip, and the locking positioning screw fixes the locking block on the fixed On the seat, the locking clip is inserted in the card slot, and the spring is sleeved on the locking positioning screw between the locking block and the fixing seat. Through the above method, the utility model can expand the scope of application through the combination of multiple modules, and can meet the requirements of large cutting force and precision machining at the same time; the clamping method is simple and the clamping efficiency is high.

Description

A modular dovetail fixture set

technical field

The utility model relates to the field of clamps, in particular to a modular dovetail clamp set.

Background technique

At present, the commonly used clamping methods for precision machining parts are vise, screw platen and suction cup, etc. However, the clamping force, clamping accuracy, reset accuracy and clamping structure of these clamping methods are very different, so for various and complex The clamping requirements of product parts are very limited. For manufacturing enterprises that process many varieties and small batches of products, choosing clamping methods based on different product parts is not only not conducive to management, but also has high input costs. In particular, the application of traditional clamping methods on multi-axis processing equipment is more limited, such as vises, suction cups, etc., which are difficult to apply in multi-axis due to their shape and structure; and lifting methods such as screw clamps need to increase the raw material specifications of the product. Cooperating with clamping increases the cost expenditure and causes a waste of resources. It can be seen that the traditional clamping fixture has poor versatility for three-axis and multi-axis equipment, cannot be standardized, and cannot be quickly switched.

Utility model content

The main technical problem to be solved by the utility model is to provide a modular dovetail fixture set. The dovetail fixture adopts a modular design and can be used in single or multiple combinations according to the size of the product. and raw material costs; the dovetail clamping structure design has strong clamping force, high clamping precision and stable clamping, which is not only suitable for large cutting volume, but also suitable for high-precision cutting processing; as an extension module of standardized manufacturing units, different Quick reset and clamping between devices; non-standard parts with different structures can be uniformly converted into the same clamping method, which is convenient for management; especially for multi-axis processing parts, the structure is complex, the shape and position accuracy is high, and multiple angles can be realized in one clamping High precision machining.

In order to solve the above technical problems, a technical solution adopted by the utility model is to provide a modular dovetail fixture set, including: a bridge four-axis fixture and a dovetail fixture set fixed on the bridge four-axis fixture, a bridge four-axis fixture The tool is fixed on the equipment workbench; the four-axis fixture of the bridge frame includes a bottom plate, a tailstock, a heightening reset block, a flat key for the tailstock, a flat key for raising the height, a positioning pin for the tailstock, a four-axis turntable, a positioning bolt for the turntable, and a working table. Base plate, base plate positioning pin and L-shaped positioning plate; the upper surface of the base plate has a module positioning groove and a turntable positioning groove, and a module positioning pin hole is opened on the base plate near the module positioning groove; the bottom of the tailstock and the height reset There are tailstock positioning grooves on the top of the block, and the tailstock flat key is fixed in the tailstock positioning groove at the bottom of the tailstock; the height reset block is fixed on the bottom of the tailstock, and the lower end of the tailstock flat key is inserted into the height reset In the tailstock positioning groove at the top of the block; the bottom of the heightening reset block has a heightening positioning groove, and a heightening pin hole is provided near the position of the heightening positioning groove, and the heightening flat key is fixed in the heightening positioning groove; The heightening reset block is fixed on the base plate, the lower end of the heightening flat key is inserted into the positioning groove of the module, and the upper and lower ends of the tailstock positioning pin are respectively inserted into the heightening pin hole and the module positioning pin hole; the four-axis turntable is set on On the bottom plate, the lower end of the turntable positioning bolt passes through the four-axis turntable and is inserted into the positioning groove of the turntable; the tailstock and the four-axis turntable are provided with flanges, and each flange is fixed with an L-shaped Positioning plate, the two ends of the base plate of the workbench are fixed on two L-shaped positioning plates; there are several dovetail clamp sets, and the dovetail clamp set includes a clamp body, a fixed block, a locking block, a spring, a clamp positioning screw, a fixed Positioning screws and locking positioning screws, the main body of the fixture is fixed on the base plate of the workbench through the positioning screws of the fixture; the main body of the fixture includes a base and a fixed seat vertically fixed in the center of the base, the fixed seat is in the shape of a square prism, and the four sides of the fixed seat There is a circle of card slots on the top, and the card slots are set close to the top of the fixed seat, and there are threaded holes on the four surfaces between the card slot and the top of the fixed seat; one side of the fixed block is provided with a fixed card near the bottom of the fixed block. The fixed block is on the same side as the fixed clip and is located at the top of the fixed block. A fixed clamp is provided on the fixed block. The side of the fixed clamp is facing the fixed seat. The fixed positioning screw passes through the fixed block and is inserted into the fixed seat. In the threaded hole, the fixing clip is inserted into the card slot, and the fixing clip is higher than the upper surface of the fixing block; the locking block is located on the fixing seat relative to the other side of the fixing block, and there are three levels on the locking block. Stepped through hole, the diameter of the middle section of the three-step stepped through hole is smaller than the diameter of the other two sections. On one side of the locking block, a locking clip is provided at the position below the three-step stepped through hole, and the outer wall of the locking clip is provided with a circular arc transition ; The locking block is provided with a locking clip on the same side as the locking clip and close to the top of the locking block. The threaded section passes through the three-step ladder and is inserted into the threaded hole of the fixing seat. The locking clip is inserted into the slot, the locking clip is higher than the upper surface of the fixing seat, and the spring is sleeved between the locking block and the fixing seat. between the locking setscrews.

Further, the axes of the two flanges on the tailstock and the four-axis turntable are on the same straight line, a positioning hole is opened in the center of the flange, a T-shaped slot is opened on the flange, and a T-shaped slot is provided in the T-shaped slot. There are T-shaped nuts; each L-shaped positioning plate is provided with a positioning mandrel, a mandrel positioning screw and a flat key of the positioning plate, and the L-shaped positioning plate has a positioning pin hole under the substrate; the reverse side of the L-shaped positioning plate is provided with The positioning shaft hole and the positioning plate flat keyway, the positioning mandrel is set in the positioning shaft hole, and the positioning mandrel and the L-shaped positioning plate are fixed by the mandrel positioning screw, and the positioning plate flat key is fixed in the positioning plate flat keyway; two pieces The L-shaped positioning plates are respectively connected to the T-nuts of the two flanges through screws. In the T-shaped slot of the blue plate; a pair of positioning pin holes on the base plate are opened at the bottom of the base plate of the workbench. Locating pin holes and dowel pin holes under the base plate.

Further, a plurality of equidistantly distributed substrate positioning holes are opened on the base plate of the workbench, and the threaded section of the clamp positioning screw passes through the base of the clamp body and is inserted into the base plate positioning holes.

The beneficial effects of the utility model are: the utility model can be widely used in the mechanical processing industry, and the application range can be expanded through the combination of multiple modules, and the universal clamping module can be used as a part of the basis of the flexible manufacturing unit of the CNC machine tool; it can meet the large cutting force at the same time , precision machining, especially the clamping requirements of multi-axis equipment for product processing; this clamping method is simple, effective, and has a good error prevention effect, which greatly improves the clamping efficiency of product manufacturing.

Description of drawings

Fig. 1 is the schematic diagram of the three-dimensional structure of a preferred embodiment of a modular dovetail fixture set of the present invention;

Fig. 2 is a schematic diagram of the exploded structure of a modular dovetail clamp group shown;

Fig. 3 is a schematic diagram showing an enlarged top view structure of a dovetail clamp set in a modular dovetail clamp set;

Fig. 4 is a schematic diagram of the A-A sectional structure of the dovetail clamp set in a modular dovetail clamp set shown;

Fig. 5 is a schematic diagram showing an enlarged three-dimensional structure of a dovetail fixing block in a modular dovetail fixture set;

Fig. 6 is an enlarged three-dimensional structural schematic diagram of a dovetail locking block in a modular dovetail clamp set.

The marks of the components in the attached drawings are as follows: 1. Equipment workbench; 8. Workbench substrate; 9. Fixture body; 10. Fixed block; 11. Locking block; 12. Spring; 13. Fixture positioning screw; 14. Fixed positioning screw; 15. Locking positioning screw; 16. Short parts; 17, long parts; 101, fixed clamping strip; 102, fixed clamping strip; 111, locking clamping strip; 112, locking clamping strip.

Detailed ways

The preferred embodiments of the utility model will be described in detail below in conjunction with the accompanying drawings, so that the advantages and characteristics of the utility model can be more easily understood by those skilled in the art, so that the protection scope of the utility model can be defined more clearly .

Please refer to Fig. 1 to Fig. 6, the utility model embodiment comprises:

A modular dovetail fixture set includes: a bridge four-axis fixture and a dovetail fixture set fixed on the bridge four-axis fixture, and the bridge four-axis fixture is fixed on an equipment workbench 1 .

The four-axis fixture for the bridge frame includes a bottom plate 2, a tailstock 3, a heightening reset block 4, a flat key for the tailstock, a flat key for raising the height, a positioning pin for the tailstock, a four-axis turntable 5, a positioning bolt for the turntable, a workbench base plate 8, and a base plate Locating pin and L-shaped positioning plate 7; the base plate 2 is fixed on the equipment table 1, the upper surface of the base plate 2 is provided with a module positioning groove and a turntable positioning groove, and the position of the base plate 2 close to the module positioning groove is provided with a module positioning pin hole ; The bottom of the tailstock 3 and the top of the heightening reset block 4 are provided with a tailstock positioning groove, and the flat key of the tailstock is fixed in the tailstock positioning groove at the bottom of the tailstock; the heightening reset block 4 is fixed on the tailstock The bottom of the seat 3, the lower end of the tailstock flat key is inserted into the tailstock positioning groove on the top of the heightening reset block; the bottom of the heightening reset block 4 has a heightening positioning groove, and a heightening pin is opened near the heightening positioning groove hole, the raised flat key is fixed in the raised positioning groove; the raised reset block 4 is fixed on the bottom plate 2, the lower end of the raised flat key is inserted into the module positioning groove, and the upper and lower ends of the tailstock positioning pin are inserted respectively Heightening pin holes and module positioning pin holes; the four-axis turntable 5 is arranged on the bottom plate 2, and the lower end of the turntable positioning bolt passes through the four-axis turntable and is inserted into the positioning groove of the turntable; the tailstock 3 and the four-axis turntable 5 are Both flanges 6 are provided, and the axes of the two flanges are on the same straight line. There is a positioning hole in the center of the flange 6, and a T-shaped slot is opened on the flange, and T-shaped nuts are arranged in the T-shaped slot. .

The L-shaped positioning plate 7 has a pair, and each L-shaped positioning plate 7 is provided with a positioning mandrel, a mandrel positioning screw and a positioning plate flat key, and the L-shaped positioning plate 7 has a positioning pin hole under the substrate; The reverse side of the L-shaped positioning plate 7 is provided with a positioning shaft hole and a flat keyway of the positioning plate. In the flat keyway of the positioning plate; the two L-shaped positioning plates 7 are respectively connected with the T-nuts of the two flanges 6 through screws, and the two positioning mandrels are respectively inserted into the two positioning round holes, and the two L-shaped positioning plates The flat keys of the positioning plate are inserted into the T-shaped grooves of the two flanges 6 respectively. The base plate 8 of the workbench is provided with a plurality of base plate positioning holes distributed equidistantly. A pair of positioning pin holes on the base plate are provided at the bottom of the base plate 8 of the workbench. The two ends of the base plate 8 of the workbench are fixed on two L-shaped positioning plates 7. The upper and lower ends of the positioning pin are respectively inserted into the positioning pin hole on the base plate and the positioning pin hole under the base plate.

There are several dovetail clamp sets, and the dovetail clamp set includes a clamp main body 9, a fixed block 10, a locking block 11, a spring 12, a clamp positioning screw 13, a fixed positioning screw 14 and a locking positioning screw 15, and the clamp main body 9 passes through the clamp The positioning screw 13 is fixed on the base plate 8 of the workbench, and the clamp positioning screw 13 is inserted into the positioning hole of the base plate to complete rapid positioning; the clamp main body 9 includes a base and a fixing seat vertically fixed at the center of the base, and the fixing seat is prismatic. The middle fixing seat is a square prism, and the four sides of the fixing seat are provided with a circle of card slots, and the card slots are arranged near the top of the fixing seat, and there are threaded holes on the four surfaces between the card slot and the top of the fixing seat; One side of the block 10 is provided with a fixed clip 101 near the bottom of the fixed block, and the fixed block 10 is provided with a fixed clip 102 on the same side as the fixed clip and at the top of the fixed block, and the fixed block 10 is provided with a fixed clip One side faces the fixed seat, the fixed positioning screw 14 passes through the fixed block and is inserted into the threaded hole of the fixed seat, the fixed clip bar 101 is inserted in the slot, and the fixed clip bar 102 is higher than the upper surface of the fixed block; the locking block 11 Located on the fixed seat relative to the other side of the fixed block, the locking block 11 is provided with a three-stage stepped through hole, the diameter of the middle section of the three-stage stepped through hole is smaller than the diameter of the other two sections, and the locking block 11 is located on the third side. The position below the through hole of the step ladder is provided with a locking clip 111, and the outer circumference of the locking clip 111 is provided with a circular arc transition; There is a locking clip 112, the locking block 11 is provided with a side of the locking clip facing the fixing seat, the locking positioning screw 15 passes through the three-step ladder and is inserted into the threaded hole of the fixing seat, and the locking clip 111 is inserted into the threaded hole of the fixing seat. In the slot, the locking clip bar 112 is higher than the upper surface of the fixing seat, and the spring 12 is sleeved on the locking positioning screw 15 between the locking block 11 and the fixing seat.

Install the bottom plate 2 on the equipment workbench 1 through six screws to form the module foundation; install two sets of hexagon socket screws and the flat key of the tailstock into the tailstock 3 as a positioning reference; then place the height reset block 4 on the tailstock 3 combined, and locked with screws to form the tailstock quick change module; then reset the tailstock quick change module on the bottom plate 2 through two sets of hexagon socket screws, pad height flat key and tailstock positioning pin, and lock it with screws; the other end Install the four-axis turntable 5 on the bottom plate through the turntable positioning groove of the bottom plate 2; in addition, respectively install a set of positioning mandrels, mandrel fixing screws and positioning plate flat keys on the two L-shaped positioning plates 7 as shown in the figure. Then install them on the four-axis turntable 5 and the tailstock 3 respectively through T-shaped nuts and screws; finally install the workbench substrate 8 on the two L-shaped positioning plates 7, and adjust the distance between the four-axis turntable 5 and the tailstock 3 To achieve the positioning of the two substrate positioning pins at the two ends of the workbench substrate 8 and the L-shaped positioning plate 7 respectively. Lock the screws and turntable positioning bolts to complete the installation. As shown in the figure, select a single or multiple dovetail fixture groups for combination according to product specifications, install them on the workbench substrate 8 through the fixture positioning screws 13, and can be used on any standard workbench substrate, and then pass the fixed block 10 through The fixed positioning screw 14 is installed on one side of the fixture main body 9 to realize the one-way positioning, and then the locking block 11 and the spring 12 are loaded into the other opposite side of the clamp main body 9 through the locking set screw 15 to form a one-way movable locking unit , and finally load the product, such as the short part 16 shown in the figure, the fixing clip bar 102 and the locking clip bar 112 cooperate to fix the short part 16 on the top of the fixing seat, when clamping a longer-sized part such as the long part 17, two parts can be used A set of dovetail clamps is used for clamping, and the movable unit is locked to complete the clamping; according to the product situation, a set of fixed blocks and locking blocks can also be installed on the other two sides of the clamp body to meet the demand for greater clamping force .

The dovetail fixture of the utility model adopts a modular design, which can be used in single or multiple combinations according to the size of the product. It has a wide range of general use and a small clamping capacity, which greatly reduces the cost of fixtures and raw materials; the dovetail-shaped clamping structure design has a large clamping force. , high clamping precision and stable clamping, not only suitable for large cutting volume, but also suitable for high-precision cutting processing; as an extension module of standardized manufacturing unit, it can realize quick reset and clamping between different equipment; non-standard parts of different structures can be Unified conversion to the same clamping method is convenient for management; especially for multi-axis processing parts, the structure is complex and the shape and position accuracy is high. One clamping can realize multi-angle high-precision processing.

The above is only an embodiment of the utility model, and does not limit the patent scope of the utility model. Any equivalent structure made by using the description of the utility model and the contents of the accompanying drawings, or directly or indirectly used in other related technical fields, All are included in the scope of patent protection of the utility model in the same way.

Claims (3)

1. A modular dovetail fixture group, is characterized in that, comprises: bridge frame four-axis fixture and the dovetail fixture group that is fixed on the bridge frame four-axis fixture, bridge frame four-axis fixture is fixed on the equipment workbench; Described bridge frame The four-axis jig includes base plate, tailstock, heightening reset block, tailstock flat key, heightening flat key, tailstock positioning pin, four-axis turntable, turntable positioning bolt, worktable base plate, base plate positioning pin and L-shaped positioning plate; There are module positioning grooves and turntable positioning grooves on the upper surface of the base plate, and module positioning pin holes are opened on the base plate near the module positioning grooves; tailstock positioning grooves are opened on the bottom of the tailstock and the top of the elevated reset block, so The tailstock flat key is fixed in the tailstock positioning groove at the bottom of the tailstock; the raised reset block is fixed at the bottom of the tailstock, and the lower end of the tailstock flat key is inserted in the tailstock positioning groove at the top of the raised reset block; There is a raised positioning groove at the bottom of the raised reset block, and a raised pin hole is opened near the raised positioned groove, and the raised flat key is fixed in the raised positioned groove; the raised reset block is fixed on the base plate, The lower end of the heightening flat key is inserted into the module positioning groove, and the upper and lower ends of the tailstock positioning pin are respectively inserted into the heightening pin hole and the module positioning pin hole; the four-axis turntable is arranged on the bottom plate, and the lower end of the turntable positioning bolt passes through The four-axis turntable is inserted into the positioning slot of the turntable; the tailstock and the four-axis turntable are provided with flanges, each flange is fixed with an L-shaped positioning plate, and the two ends of the workbench base plate are fixed On the two L-shaped positioning plates; there are several dovetail clamp sets, the dovetail clamp set includes a clamp main body, a fixed block, a locking block, a spring, a clamp positioning screw, a fixed positioning screw and a locking positioning screw, and the clamp main body passes through Fixture positioning screws are fixed on the base plate of the workbench; the main body of the fixture includes a base and a fixing seat vertically fixed in the center of the base. The top of the seat is set, and there are threaded holes on the four surfaces between the card slot and the top of the fixed seat; one side of the fixed block is provided with a fixed clip near the bottom of the fixed block, and the fixed block is on the same side as the fixed clip And the position on the top of the fixed block is provided with a fixed clip bar, the side of the fixed block with the fixed clip bar faces the fixed seat, the fixed positioning screw passes through the fixed block and is inserted into the threaded hole of the fixed seat, and the fixed clip bar is inserted into the card slot Inside, the fixing clip bar is higher than the upper surface of the fixing block; the locking block is located on the fixing seat relative to the other side of the fixing block, and there are three-step through holes on the locking block, and the middle section of the three-step through hole is The diameter is smaller than the diameters of the other two sections. On one side of the locking block, a locking clip is provided at the position below the through hole of the three-step ladder, and the outer wall of the locking clip is provided with a circular arc transition; the locking block and the locking clip The locking clips are provided on the same side of the bars and close to the top of the locking block. The side of the locking block with the locking clips is facing the fixing seat. The threaded section of the locking positioning screw passes through the three-step ladder and is inserted into the fixed seat. In the threaded hole of the seat, the locking clip bar is inserted in the card slot, the locking clip bar is higher than the upper surface of the fixing seat, and the spring is sleeved on the locking positioning screw between the locking block and the fixing seat. 2. A modular dovetail fixture set according to claim 1, characterized in that: the axes of the tailstock and the two flanges on the four-axis turntable are on the same straight line, and the center of the flange is provided with a positioning A round hole, a T-shaped slot on the flange, and a T-shaped nut in the T-shaped slot; each L-shaped positioning plate is equipped with a positioning mandrel, a mandrel positioning screw and a flat key of the positioning plate, and the L-shaped positioning plate There are positioning pin holes under the base plate on the top; the reverse side of the L-shaped positioning plate is provided with a positioning shaft hole and a flat keyway of the positioning plate, and the positioning mandrel is set in the positioning shaft hole, and the positioning mandrel is connected to the L-shaped positioning plate through the mandrel positioning screw. The positioning plate is fixed, and the flat key of the positioning plate is fixed in the flat keyway of the positioning plate; the two L-shaped positioning plates are respectively connected with the T-nuts of the two flanges through screws, and the two positioning mandrels are respectively inserted into the two positioning round holes The flat keys of the positioning plate on the two L-shaped positioning plates are respectively inserted into the T-shaped grooves of the two flanges; a pair of positioning pin holes on the base plate are opened on the bottom of the base plate of the workbench, and the two ends of the base plate of the workbench are fixed on two On the L-shaped positioning plate, the upper and lower ends of the substrate positioning pin are respectively inserted into the upper positioning pin hole of the substrate and the lower positioning pin hole of the substrate. 3. A modular dovetail fixture set according to claim 2, characterized in that: the base plate of the workbench is provided with a number of base plate positioning holes distributed equidistantly, and the threaded section of the clamp positioning screw passes through the clamp main body and insert it into the positioning hole of the substrate.