Cutting device for precision part machining
Technical Field
The utility model relates to the technical field of precision part machining equipment, in particular to a cutting device for precision part machining.
Background
Precision parts are parts with small dimensional, shape and positional tolerances and high surface quality requirements, and generally have precision grades up to micron-sized or higher. The precision parts are widely applied to the fields of machinery, electronics, optics, aerospace, medical treatment and the like, such as precision transmission parts, precision instruments and meters, precision machining equipment and the like. Precision parts are usually cut during processing, and therefore special cutting devices are used.
The utility model discloses a cutting device for a precision die in China patent of publication No. CN217166019U, the device drives a threaded rod to rotate through an output shaft of a double-shaft servo motor, so that two threaded blocks can move oppositely, at the moment, two squeezing wheels squeeze two trapezoid blocks, so that a connecting plate moves upwards, two limiting plates can move relatively through the cooperation of the connecting plate and a connecting rod, and therefore the left side and the right side of the precision die are limited and fixed, and aiming at the related technology in the above, the inventor considers that the following defects exist:
When the device is in practical use, the precise workpiece is required to be clamped firstly, then the precise workpiece can be cut, and the cutting and clamping operations are difficult to be carried out simultaneously, so that the processing efficiency of the precise workpiece is reduced, and therefore, the cutting device for precise part processing is provided.
Disclosure of utility model
In order to solve the problem that the machining efficiency of a precise workpiece is reduced because the cutting and clamping operations are difficult to be carried out simultaneously in the background art, the utility model provides a cutting device for precise part machining.
The utility model adopts the following technical scheme that the cutting device for precision part processing comprises:
The cutting table is characterized in that a sliding rail is horizontally and fixedly connected to the upper side of the cutting table through a support, an electric sliding table is connected to the outer portion of the sliding rail in a sliding manner, an air cylinder is fixedly connected to the bottom of the electric sliding table, a connecting block is fixedly connected to the telescopic tail end of the air cylinder, a connecting plate is fixedly connected to the bottom of the connecting block, a connecting seat is movably connected to the bottom of the connecting plate, a motor is fixedly connected to one side of the connecting seat, a cutting knife is arranged on the other side of the connecting seat, and the cutting knife is coaxially and fixedly connected with the tail end of a rotor of the motor;
the automatic clamping assembly comprises two groups of sliding grooves symmetrically arranged on a support, sliding blocks are connected inside the sliding grooves in a sliding mode, sliding connection is achieved between the sliding blocks and the sliding rods, one side of the sliding blocks is fixedly connected with a reversed T-shaped pressing piece, one side of the top of the cutting table is fixedly connected with a vertical rod in a symmetrical mode, sliding connection of the outer side of the vertical rod is provided with a sliding piece, fixing blocks are fixedly connected to the outer side of the sliding piece and are in contact with the bottom of the pressing piece, a first spring is sleeved outside the vertical rod, a stop bar is fixedly connected to one side of the top of the cutting table, a moving plate is movably connected to the other side of the top of the cutting table in a movable mode, a connecting rod is hinged between the moving plate and the fixing blocks through a hinge piece, and one side of the moving plate is provided with a clamping plate.
As a further improvement of the scheme, the connecting plates are symmetrically and slidably connected with movable rods, the bottoms of the two groups of movable rods are fixedly connected with the same positioning strip, springs II are sleeved outside the movable rods, an indicating plate is arranged on one side of each positioning strip, and the top of the cutting table is fixedly connected with a graduated scale plate.
As a further improvement of the above, the automatic clamping assembly further includes:
the two groups of cross bars are symmetrically and fixedly connected to one side of the clamping plate and are in sliding connection with the moving plate, and a spring III is sleeved outside the cross bars.
As a further improvement of the scheme, the top of the connecting seat is fixedly connected with a moving block, the bottom of the connecting plate is provided with a moving groove corresponding to the position of the moving block and is in sliding connection with the moving block, and one side of the bottom of the connecting plate is fixedly connected with an electric push rod, and the telescopic tail end of the electric push rod is fixedly connected with the connecting seat.
As a further improvement of the scheme, the bottom of the movable plate is symmetrically and fixedly connected with a guide block, and the top of the cutting table is symmetrically provided with a guide groove and is in sliding connection with the guide block.
As a further improvement of the scheme, the indicating plate is in limiting sliding connection with the positioning strip, the screw rod is rotationally connected to the top of the indicating plate, and the fixing seat is fixedly connected to the positioning strip and in threaded connection with the screw rod.
As a further improvement of the above, the clamping plate is provided with a non-slip mat on the outside.
Compared with the prior art, the utility model has the beneficial effects that:
1. In the process of cutting the precise workpiece by pushing the cutting knife to vertically move downwards through the air cylinder, the sliding block and the sliding rod can move downwards along with the pushing, so that the fixed block can be pushed to slide outside the vertical rod and compress the first spring, the sliding fit between the guide block and the guide groove can be utilized to push the movable plate to approach the precise workpiece by utilizing the hinging action between the fixed block, the movable plate and the connecting rod, thereby driving the clamping plate to clamp the precise workpiece close to the nearest position, effectively avoiding the problem that the machining efficiency of the precise workpiece is reduced due to the fact that the cutting and clamping operations are difficult to be simultaneously carried out, and having strong practicability.
2. The utility model can also drive the positioning strip to move downwards together in the vertical downward moving process of the cutting knife, and can intuitively judge whether the actual cutting length is consistent with the required cutting length by utilizing the numerical value indicated by the bottom of the indicating plate on the scale plate after the positioning strip is contacted with the surface of the precise workpiece, thereby ensuring the accuracy of cutting the precise workpiece and further improving the practicability of the device.
Drawings
FIG. 1 is a schematic perspective view of the present utility model;
FIG. 2 is a schematic perspective view of an automatic clamping assembly according to the present utility model;
Fig. 3 is a schematic perspective view of a connecting structure of the positioning strip of the present utility model.
Main symbol description:
1. Cutting table 2, electric sliding table 3, cylinder 4, connecting block 5, cutting knife 6, electric push rod 101, sliding block 102, sliding rod 103, pressing piece 104, vertical rod 105, fixed block 106, spring one 107, blocking bar 108, moving plate 109, connecting rod 110, clamping plate 111, cross rod 112, spring three 201, moving rod 202, positioning bar 203, spring two 204, indicating plate 205, graduated scale plate 206 and screw rod.
Detailed Description
The present utility model will be further described with reference to the accompanying drawings and detailed description, wherein it is to be understood that, on the premise of no conflict, the following embodiments or technical features may be arbitrarily combined to form new embodiments.
Examples
Referring to fig. 1-3, a cutting device for precision part processing of the present embodiment includes:
The cutting table 1 is horizontally and fixedly connected with a sliding rail through a bracket, the outer part of the sliding rail is slidably connected with an electric sliding table 2, the bottom of the electric sliding table 2 is fixedly connected with a cylinder 3, the telescopic tail end of the cylinder 3 is fixedly connected with a connecting block 4, the bottom of the connecting block 4 is fixedly connected with a connecting plate, the bottom of the connecting plate is movably connected with a connecting seat, one side of the connecting seat is fixedly connected with a motor, the other side of the connecting seat is provided with a cutting knife 5 and the cutting knife 5 is fixedly connected with the tail end of a rotor of the motor in a coaxial manner, the top of the connecting seat is fixedly connected with a moving block, the bottom of the connecting plate is provided with a moving groove corresponding to the position of the moving block and is slidably connected with the moving block, one side of the bottom of the connecting plate is fixedly connected with an electric push rod 6, the telescopic tail end of the electric push rod 6 is fixedly connected with the connecting seat, and the cutting knife 5 can be driven to move forwards and backwards, and precise workpieces can be thoroughly cut off;
The automatic clamping assembly comprises two groups of sliding grooves which are symmetrically arranged on a support, sliding blocks 101 are symmetrically and fixedly connected to the inner sides of the sliding grooves, sliding rods 102 are symmetrically and fixedly connected between the sliding rods 102 and the connecting blocks 4, pressing pieces 103 which are in inverted T shape are fixedly connected to the bottoms of the sliding blocks 101 on one side, vertical rods 104 are symmetrically and fixedly connected to the tops of the cutting tables 1, sliding pieces are slidably connected to the outer sides of the vertical rods 104, fixing blocks 105 are fixedly connected to the outer sides of the sliding pieces and are contacted with the bottoms of the pressing pieces 103, springs 106 are sleeved on the outer sides of the vertical rods 104, stop bars 107 are fixedly connected to one sides of the tops of the cutting tables 1, moving plates 108 are movably connected to the other sides of the tops of the cutting tables 1, connecting rods 109 are hinged between the moving plates 108 and the fixing blocks 105 through hinge pieces, clamping plates 110 are arranged on one sides of the moving plates 108, guide blocks are symmetrically and fixedly connected to the bottoms of the cutting tables 1, the guide grooves are symmetrically arranged on the tops of the cutting tables 1 and are slidably connected with the guide blocks, a certain guide effect on horizontal movement of the moving plates 108 is achieved, a cushion is achieved, and friction between the clamping plates 110 and a workpiece can be prevented from precisely sliding when the accurate sliding of the workpiece is increased.
The automatic clamping assembly further comprises:
Two groups of cross bars 111, two groups of cross bars 111 are symmetrically and fixedly connected to one side of the clamping plate 110, the cross bars 111 are in sliding connection with the moving plate 108, and a spring III 112 is sleeved outside the cross bars 111.
The connecting plate is symmetrically and slidingly connected with movable rods 201, the bottoms of the two groups of movable rods 201 are fixedly connected with the same positioning strip 202, a second spring 203 is sleeved outside the movable rods 201, an indicating plate 204 is arranged on one side of the positioning strip 202, the top of the cutting table 1 is fixedly connected with a graduated scale plate 205, and the baffle strips 107 are vertically connected to zero graduation marks of the graduated scale plate 205.
The implementation principle of the cutting device for processing the precise parts in the embodiment of the application is as follows: firstly, a precision workpiece is placed on the top of a cutting table 1 and one side of the precision workpiece is supported on a baffle bar 107, then a cylinder 3 is started, a cutting knife 5 is pushed to move vertically downwards by the cylinder 3 to cut the precision workpiece, a pressing piece 103 can be pushed to move downwards along with pushing, so that a fixing block 105 can be pushed to slide outside a vertical rod 104 and compress a spring I106, the moving plate 108 can be pushed to approach the precision workpiece by utilizing the hinging action between the fixing block 105 and a moving plate 108 and a connecting rod 109 and the sliding fit between the guide block and a guide groove, so that a clamping plate 110 can be driven to clamp the precision workpiece towards the precision workpiece, when the clamping plate 110 is firstly contacted with the precision workpiece, the moving plate 108 can slide outside a cross rod 111 and compress a spring III 112, therefore, a certain buffering effect can be achieved so that the cutting knife 5 can continue to move downwards, the positioning strip 202 can be driven to move downwards together in the vertical downward moving process of the cutting knife 5, after the positioning strip 202 is contacted with the surface of a precise workpiece, whether the actual cutting length is consistent with the required cutting length or not can be intuitively judged by utilizing the numerical value indicated by the bottom of the indicating plate 204 on the graduated scale plate 205, so that the accuracy of cutting the precise workpiece is ensured, when the indicated numerical value is inconsistent with the numerical value of the required cutting length, the motor is started after the electric sliding table 2 is controlled to horizontally move on the track so as to realize the adjustment of the left and right positions, the motor drives the cutting knife 5 to rotate so as to cut the precise workpiece, the cutting knife 5 is pushed to move forwards and backwards by the electric push rod 6, so that the precise workpiece can be thoroughly cut, and finally the control cylinder 3 drives the cutting knife 5 to reset, and the positioning strip 202 and the clamping plate 110 can be reset together at the moment, and then the precise workpiece can be taken down.
Examples
The embodiment is further improved on the basis of embodiment 1 in that the indication plate 204 is in limit sliding connection with the positioning strip 202, the screw rod 206 is rotationally connected to the top of the indication plate 204, the fixed seat is fixedly connected to the positioning strip 202, the fixed seat is in threaded connection with the screw rod 206, and the indication plate 204 can be driven to vertically move by rotating the screw rod 206 and being matched with the limit sliding connection between the indication plate 204 and the positioning strip 202, so that the position of the indication plate 204 can be conveniently adjusted according to the thickness of a precise workpiece, and the clarity of numerical indication on the scale plate 205 can be ensured.
The above embodiments are only preferred embodiments of the present utility model, and the scope of the present utility model is not limited thereto, but any insubstantial changes and substitutions made by those skilled in the art on the basis of the present utility model are intended to be within the scope of the present utility model as claimed.