CN218776144U - Quick-change improved dovetail type tool clamp - Google Patents

Abstract

The utility model discloses a quick change improved generation dovetail frock clamp relates to frock clamp technical field, the on-line screen storage device comprises a base, the base top is through bolt fixedly connected with forked tail anchor clamps piece, forked tail anchor clamps piece front side is equipped with Yan Weikuai, forked tail anchor clamps piece rear side is run through fixedly and is equipped with the threaded sleeve, forked tail piece front side is run through and is equipped with the screw rod, the threaded sleeve cover is established in the screw rod outer end, the outer pot head of screw rod is equipped with the guide sleeve, screw rod outer pot head is equipped with the spring, can carry out the centre gripping fast to the forked tail of work piece bottom through forked tail anchor clamps piece, forked tail piece, screw rod and locating pin and fix, and carry out the centre gripping to the forked tail and can avoid the space to shelter from the interference, improve five-axis machine tool machining scope, also reduce the phenomenon of using handle of a knife and cutter simultaneously, improve the processing rigidity, make the lathe can put certain limit negative angle processing, still have certain economic nature, practice thrift work piece material cost, relative traditional anchor clamps, the forked tail stub bar of centre gripping is little, convenient follow-up getting rid of.

Description

Quick-change improved dovetail type tool clamp

Technical Field

The utility model relates to a frock clamp technical field especially relates to a quick change improved generation dovetail frock clamp.

Background

The five-axis machining center belongs to high-precision and high-efficiency machining equipment, is high in value and complex in movement, can be clamped at one time in a process clamping manner, and completes machining of five space surfaces except a bottom clamping surface; the method can ensure extremely high processing efficiency and precision, and a spindle head of a five-axis linkage processing center and a cutter extending outwards of the spindle head may need some additional 'moving spaces' in the processing process to execute complex five-axis linkage processing space movement. Conventional workholding equipment and worktop surfaces tend to block the path of travel of the tool and limit five axes of motion.

The problem is more prominent on a five-axis linkage machine tool with a workpiece in passive rotation and inclination; the clamp that commonly uses in five-axis machining at present is most some universal fixturing like: precision vises, three-jaw chucks, and the like; in practical application, the space interference of the tool spindle head relative to the clamp is large, so that the process table reserved for clamping parts needs to be long, the clamp is usually required to be higher than the spindle head by a half-diameter height, and the tool is arranged to be long, and then some machining areas with large interference, such as inverted profiles and some composite angle surfaces, can be machined; therefore, the five-axis linkage machining advantage cannot be well played, the machining range of equipment is shortened, the efficiency is very low in actual machining, the tool is easy to shake, the surface quality of a workpiece is greatly reduced, the phenomenon that a machine tool cannot normally run downwards due to overtravel frequently occurs, the quantity of the process tables for clamping is long, and the production materials of enterprises are greatly wasted in a long term.

SUMMERY OF THE UTILITY MODEL

The utility model provides a quick change improved generation dovetail frock clamp to solve above-mentioned technical problem.

For solving the technical problem, the utility model provides a pair of quick change improved generation dovetail frock clamp, the on-line screen storage device comprises a base, bolt fixedly connected with forked tail anchor clamps piece is passed through on the base top, forked tail anchor clamps piece front side is equipped with Yan Weikuai, the dovetail has been seted up on forked tail anchor clamps piece top, first logical groove has been seted up to forked tail anchor clamps piece front side, forked tail piece rear side is seted up and is equipped with the second and leads to the groove, first logical groove is established at the logical groove rear side of second, forked tail anchor clamps piece rear side runs through fixedly and is equipped with threaded sleeve, forked tail piece front side runs through and is equipped with the screw rod, the screw rod runs through the second and leads to groove and first logical groove, the threaded sleeve cover is established in the screw rod outer end, just screw rod and threaded sleeve pass through threaded connection, screw rod outer pot head is equipped with guide sleeve, guide sleeve establishes inside first logical inslot and extends to the second through the groove, screw rod outer pot head is equipped with the spring, the spring is established at guide sleeve rear side and is extended to guide sleeve inside, the guide sleeve front side and guide sleeve inner wall contact with respectively at the spring both ends.

Preferably, the bottom end in the dovetail groove is connected with a positioning pin through threads.

Preferably, the outer end of the screw rod is sleeved with a gasket, and the gasket is arranged on the front side of the dovetail block.

Preferably, the bottom end of the base is fixedly connected with a plurality of blind rivets through threads.

Compared with the prior art, the utility model provides a pair of quick change improved generation dovetail frock clamp has following beneficial effect:

can carry out the centre gripping through forked tail anchor clamps piece, forked tail piece, screw rod and locating pin to the forked tail of work piece bottom fast and fix, and carry out the centre gripping to the forked tail and can enlarge the range of processing, avoid the space to shelter from the interference, improve five-axis machine tool machining scope, also reduce the phenomenon of using long handle of a knife and cutter simultaneously, improve the processing rigidity, make the lathe can put some limit negative angle processing, certain economic nature still has, practice thrift workpiece material cost, traditional anchor clamps relatively, the forked tail stub bar of centre gripping is little, convenient follow-up getting rid of.

Drawings

Fig. 1 is a schematic view of an overall three-dimensional structure of a quick-change improved dovetail type tooling fixture provided by the present invention;

fig. 2 is a schematic view of a three-dimensional structure of a base of a quick-change improved dovetail type tool clamp provided by the utility model;

fig. 3 is a schematic view of a partial three-dimensional structure of a quick-change improved dovetail type tool holder provided by the present invention;

fig. 4 is a schematic view of a partially cut-away perspective structure of a quick-change improved dovetail type tooling fixture provided by the present invention;

fig. 5 is a schematic view of a three-dimensional structure of a dovetail clamp block of the quick-change improved dovetail type tool clamp provided by the present invention;

fig. 6 is a schematic view of a dovetail block three-dimensional structure of a quick-change improved dovetail type tool clamp provided by the present invention;

fig. 7 is a schematic view of a three-dimensional structure of a screw of the quick-change improved dovetail type tool clamp provided by the present invention;

fig. 8 is a schematic view of a three-dimensional structure of a guide sleeve of a quick-change improved dovetail type tool clamp provided by the present invention;

fig. 9 is a schematic view of a three-dimensional structure of a workpiece of the quick-change improved dovetail type tooling fixture provided by the utility model.

Reference numbers in the figures: 1. the fixture comprises a base, 2, a dovetail fixture block, 3, a dovetail block, 4, a dovetail groove, 5, a positioning pin, 6, a screw rod, 7, a gasket, 8, a guide sleeve, 9, a threaded sleeve, 10, a spring, 11, a first through groove, 12, a second through groove, 13, a rivet, 14, a workpiece, 15, a dovetail, 16 and a pin groove.

Detailed Description

An embodiment is given by fig. 1-9, the utility model discloses a base 1, bolt fixedly connected with forked tail anchor clamps piece 2 is passed through on base 1 top, 2 front sides of forked tail anchor clamps pieces are equipped with forked tail piece 3, dovetail 4 has been seted up on 2 tops of forked tail anchor clamps piece, 2 front sides of forked tail anchor clamps pieces are seted up first logical groove 11, 3 rear sides of forked tail piece are seted up second through groove 12, first logical groove 11 is established at second through groove 12 rear sides, 2 rear sides of forked tail anchor clamps pieces are run through fixedly and are equipped with threaded sleeve 9, 3 front sides of forked tail piece are run through and are equipped with screw rod 6, screw rod 6 runs through second through groove 12 and first logical groove 11, threaded sleeve 9 cover is established in screw rod 6 outer end, just screw rod 6 and threaded sleeve 9 pass through threaded connection, 6 outer pot head is equipped with guide sleeve 8, guide sleeve 8 is established inside first logical groove 11 and extends to second through groove 12, 6 outer pot head is equipped with spring 10, spring 10 is established at guide sleeve 8 rear sides and extends to guide sleeve 8, change spring 10 and the quick control screw rod inner wall of controlling the front and back-and-forth movement of the work piece is received the quick control screw rod piece to guide sleeve 6.

There is locating pin 5 in the inside bottom of dovetail 4 through threaded connection, 6 outer pot heads of screw rod are equipped with gasket 7, gasket 7 is established at 3 front sides of dovetail block, 1 bottom of base is through a plurality of blind rivets 13 of screw thread fixedly connected with, and locating pin 5 can further carry on spacingly to forked tail 15 of work piece 14 bottom, makes it can't remove about, and gasket 7 can assist screw rod 6 to promote 3 retches of dovetail block and carry out the centre gripping fixedly to forked tail 15, and blind rivet 13 can be connected with the quick change board to fix the work piece of frock clamp and centre gripping on the workstation when man-hour.

The top of the dovetail clamp block 2 is provided with a workpiece 14, the bottom of the workpiece 14 is processed with a dovetail 15, the dovetail 15 is arranged inside the dovetail groove 4, the rear side of the bottom end of the dovetail 16 is provided with a pin groove 16, the positioning pin 5 penetrates through the pin groove 16, the size and the type of the workpiece 14 are not limited, the dovetail 15 can be processed at the bottom for clamping the clamp, the clamping area is small, the workpiece 14 is not limited easily during processing, the positioning pin 5 penetrates through the pin groove 16, the dovetail 15 cannot be moved upwards and taken out during clamping, the clamping firmness is good, and the workpiece 14 can be directly cut off the dovetail 15 after processing.

The working principle is as follows:

when a workpiece 14 is clamped, a dovetail 15 at the bottom of the workpiece 14 is placed in the dovetail groove 4, a pin groove 16 on the dovetail 15 is sleeved on the positioning pin 5, then the screw 6 is rotated, the screw 6 moves backwards when the screw 6 rotates due to the fact that the screw 6 is in threaded connection with the threaded sleeve 9, the screw 6 pushes the dovetail block 3 to synchronously move backwards through the gasket 7 when moving backwards, the dovetail 15 is clamped at the top end of the dovetail block 3, the dovetail 15 at the bottom of the workpiece 14 is fixed in the dovetail groove 4 and cannot move upwards or leftwards and rightwards, when the screw 6 pushes the dovetail block 3 to move backwards, the guide sleeve 8 also follows the dovetail block 3 to move backwards and extrude the spring 10 to generate elastic force, when the workpiece 14 needs to be removed after being machined, the screw 6 is rotated reversely, the screw 6 moves forwards, the elastic force of the spring 10 pushes the guide sleeve 8 to push the dovetail block 3 to move forwards until the dovetail block 3 does not exist, and the workpiece 14 is clamped, and the workpiece 14 can be removed, and the workpiece 15 can be cut off after being removed.

Claims (4)

1. The utility model provides a quick change improved generation dovetail frock clamp, includes base (1), its characterized in that: the top end of the base (1) is fixedly connected with a dovetail clamp block (2) through a bolt, the front side of the dovetail clamp block (2) is provided with Yan Weikuai (3), the top end of the dovetail clamp block (2) is provided with a dovetail groove (4), a first through groove (11) is arranged on the front side of the dovetail clamp block (2), a second through groove (12) is arranged at the rear side of the Yan Weikuai (3), the first through groove (11) is arranged at the rear side of the second through groove (12), a threaded sleeve (9) is fixedly arranged on the rear side of the dovetail clamp block (2) in a penetrating way, a screw rod (6) penetrates through the front side of the Yan Weikuai (3), the screw rod (6) penetrates through the second through groove (12) and the first through groove (11), the threaded sleeve (9) is sleeved at the outer end of the screw rod (6), and the screw rod (6) is connected with the threaded sleeve (9) through threads, the outer end of the screw rod (6) is sleeved with a guide sleeve (8), the guide sleeve (8) is arranged in the first through groove (11) and extends into the second through groove (12), a spring (10) is sleeved at the outer end of the screw rod (6), the spring (10) is arranged at the rear side of the guide sleeve (8) and extends into the guide sleeve (8), and two ends of the spring (10) are respectively contacted with the front side of the threaded sleeve (9) and the inner wall of the guide sleeve (8).

2. A quick-change improved dovetail type tooling fixture according to claim 1, characterized in that the bottom end inside the dovetail groove (4) is connected with a positioning pin (5) through screw threads.

3. A quick-change improved dovetail type tooling fixture according to claim 1, characterized in that a gasket (7) is sleeved on the outer end of the screw rod (6), and the gasket (7) is arranged on the front side of the dovetail block (3).

4. A quick-change improved dovetail type tooling fixture according to claim 1, characterized in that a plurality of blind rivets (13) are fixedly connected to the bottom end of the base (1) by means of screw threads.

Images