Tool clamp for preventing screw loosening during machining of numerical control machining center
Technical Field
The utility model belongs to the technical field of anchor clamps, concretely relates to be used for numerical control machining center to add not hard up frock clamp of anti-screw man-hour.
Background
The jig is a device for fixing a machining object to a correct position for construction or inspection in a machine manufacturing process, and is also called a jig.
When a workpiece on a clamp is machined by a traditional numerical control center, the clamp vibrates due to cutting and friction between a cutter and the workpiece, the screw is easily loosened during vibration, machining precision can be influenced, the workpiece or the clamp can fly out more seriously, machining accidents occur, the workpiece or the clamp is fixed by the screw alone, and the clamp is not firm to fix and can influence the machining precision.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a frock clamp that is used for numerical control machining center to add man-hour to propose one kind among the above-mentioned background art and be used for numerical control machining center frock clamp current in the use, because cutting and the friction between cutter and work piece can lead to the vibration of anchor clamps, and singly lean on the screw to fix, it is insecure to the fixed of anchor clamps, thereby leads to the screw easily not hard up, influences the problem of the precision of processing.
In order to achieve the above object, the utility model provides a following technical scheme: a tool clamp for preventing screw loosening during machining of a numerical control machining center comprises a base, wherein a slide rail is fixedly connected to the top of the base, a first clamping block is arranged at the top of the slide rail, the bottom of the first clamping block is slidably connected with the inner wall of the slide rail, a second clamping block is fixedly connected to one end, away from the first clamping block, of the slide rail, a screw rod parallel to the slide rail is arranged inside the slide rail, the outer wall of the screw rod is in threaded connection with the inner wall of the first clamping block, four mounting lugs are fixedly connected to the outer walls of the two sides of the base, a vertically arranged slide groove is formed in the outer wall, close to the mounting lugs, of the base, a fixing screw is movably connected to the inner wall of each mounting lug, a locking device is arranged at the top of the fixing screw, a connecting block is fixedly connected to the outer wall of the locking device, the axis of the anti-loosening device is connected with the chaste tree wheel in a rotating mode through a connecting shaft, a clamping hole is formed in the bottom of the chaste tree wheel, a movable groove is formed in the inner wall of the anti-loosening device, and a clamping block is connected to the inner wall of the movable groove in a rotating mode.
Preferably, the bottom of the inner wall of the base is fixedly connected with an electromagnet, the outer wall of the base is fixedly connected with a control switch, and the control switch is electrically connected with the electromagnet through a lead.
Preferably, the cross section of the sliding groove is in a T shape, and the sliding groove is communicated with the top of the base.
Preferably, the bottom of the electromagnet is fixedly connected with a sealing ring, and the outer side of the sealing ring, which is far away from the electromagnet, is fixedly connected with the bottom of the base.
Preferably, the other end of the fixture block, which is far away from the movable groove, is movably connected with the outer wall of the chaste tree wheel.
Preferably, the inner wall of the clamping hole is matched with the outer wall of the fixing screw.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the device is fixed in a threaded hole reserved on a workbench through the set fixing screw, after the base is fixed, the connecting block slides down along the sliding groove, the chaste tree wheel is rotated along the direction of screwing the fixing screw, the hole clamping sleeve is arranged at the top of the fixing screw, and the chaste tree wheel cannot rotate towards the direction of loosening the fixing screw due to the limitation between the chaste tree wheel and the chaste tree wheel at the moment so as to achieve the effect that the screw cannot loosen and is firmly connected.
2. The base can be adsorbed on table surface through the electro-magnet that sets up for the base can also receive the electro-magnet to produce great magnetic force when receiving set screw's fixed and adsorb, makes to connect more stably, and the atress is even, in order to reach the effect that the installation accuracy is high.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic view of the structure of the present invention in the bottom view;
FIG. 3 is an enlarged schematic view of the anti-loosening device of the present invention;
FIG. 4 is a schematic cross-sectional view of the anti-loosening device of the present invention;
fig. 5 is a schematic longitudinal sectional structural view of the anti-loosening device of the present invention.
In the figure: 1. a base; 2. a slide rail; 3. a screw; 4. a first clamping block; 5. a second clamp block; 6. mounting lugs; 7. a chute; 8. a locking device; 9. connecting blocks; 10. a chaste tree wheel; 11. a movable groove; 12. a clamping block; 13. a clamping hole; 14. a connecting shaft; 15. a control switch; 16. an electromagnet; 17. a seal ring; 18. and fixing the screw.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: a tool clamp for preventing screw loosening during machining of a numerical control machining center comprises a base 1, a slide rail 2 is fixedly connected to the top of the base 1, a first clamping block 4 is arranged at the top of the slide rail 2, the bottom of the first clamping block 4 is connected with the inner wall of the slide rail 2 in a sliding mode, a second clamping block 5 is fixedly connected to one end, far away from the first clamping block 4, of the slide rail 2, a screw rod 3 parallel to the slide rail 2 is arranged inside the slide rail 2, the outer wall of the screw rod 3 is in threaded connection with the inner wall of the first clamping block 4, four mounting lugs 6 are fixedly connected to the outer walls on two sides of the base 1, a vertically arranged slide groove 7 is formed in the outer wall, close to the mounting lugs 6, of the base 1, a fixing screw 18 is movably connected to the inner wall of the mounting lugs 6, a locking device 8 is arranged at the top of the fixing screw 18, a connecting block 9 is, the axis of the anti-loosening device 8 is rotatably connected with the chaste tree wheel 10 through a connecting shaft 14, the bottom of the chaste tree wheel 10 is provided with a clamping hole 13, the inner wall of the anti-loosening device 8 is provided with a movable groove 11, and the inner wall of the movable groove 11 is rotatably connected with a clamping block 12.
In this embodiment, fix the device in the threaded hole of reserving on the workstation through the set up set screw 18, to base 1 fixed back, slide down connecting block 9 along spout 7 again, rotate chaste tree 10 along the direction of the set screw 18 of screwing, make card hole 13 cover at set screw 18's top, the device is because spacing between chaste tree 10 and fixture block 12 this moment, make chaste tree 10 can not rotate towards the direction of not hard up set screw 18, in order to reach the unable not hard up of screw, firm in connection's effect.
Specifically, the bottom of the inner wall of the base 1 is fixedly connected with an electromagnet 16, the outer wall of the base 1 is fixedly connected with a control switch 15, and the control switch 15 is electrically connected with the electromagnet 16 through a lead.
In this embodiment, can adsorb base 1 on table surface through the electro-magnet 16 that sets up for base 1 can also produce great magnetic force by electro-magnet 16 and adsorb when receiving set screw 18 is fixed, makes to connect more stably, and the atress is even, in order to reach the effect that the installation accuracy is high.
Specifically, the cross section of the chute 7 is in a T shape, and the chute 7 is communicated with the top of the base 1.
In this embodiment, when the spout 7 of "T style of calligraphy" can support connecting block 9, can also conveniently take out locking device 8 and change, when the easy access, can also come to use with the 18 cooperations of set screw of different models through changing different locking device 8.
Specifically, the bottom of the electromagnet 16 is fixedly connected with a sealing ring 17, and the outer side of the sealing ring 17 far away from the electromagnet 16 is fixedly connected with the bottom of the base 1.
In this embodiment, the sealing ring 17 can prevent dust from entering between the electromagnet 16 and the base 1, which causes a fault and prevents the machining precision from being affected by residual dirt.
Specifically, the other end of the fixture block 12 far away from the movable groove 11 is movably connected with the outer wall of the chaste wheel 10.
In this embodiment, the limit of the latch 12 enables the chaste wheel 10 to rotate only in the direction of tightening the fixing screw 18.
Specifically, the inner wall of the locking hole 13 is matched with the outer wall of the fixing screw 18.
In this embodiment, the fixing screw 18 can be restricted by the engaging hole 13.
The utility model discloses a theory of operation and use flow: the base 1 is placed on a workbench, the screw rod 3 is rotated to move the first clamping block 4, a workpiece is clamped under the matching use of the first clamping block 4 and the second clamping block 5, the device is fixed in a threaded hole reserved on the workbench through a fixing screw 18, after the base 1 is fixed, the connecting block 9 slides down along the sliding groove 7, the chaste wheel 10 is rotated along the direction of screwing the fixing screw 18, the card hole 13 is sleeved at the top of the fixing screw 18, at the moment, the device enables the chaste wheel 10 not to rotate towards the direction of loosening the fixing screw 18 due to the spacing between the chaste wheel 10 and the fixture block 12, so that the screw cannot be loosened, the effect of firm connection is achieved, the base 1 can be adsorbed on the workbench surface through the arranged electromagnet 16, the base 1 can be adsorbed by the electromagnet 16 when being fixed by the fixing screw 18, and the connection is more stable, the stress is even to reach the effect that the installation accuracy is high.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.