The Z axis lowering or hoisting gear of printing machine workbench
Technical field
The utility model relates to a kind of Z axis lowering or hoisting gear of printing machine workbench.
Background technology
At present, the platform Z axis lowering or hoisting gear of printing machine generally all is comprised of a base, a sleeve screw rod, two cover slide rails etc. in the industry, and stationarity and kinematic accuracy are poor.
The utility model content
Technical problem to be solved in the utility model provides a kind of Z axis lowering or hoisting gear of printing machine workbench, and the Z axis lowering or hoisting gear of this printing machine workbench operates steadily, and kinematic accuracy is high.
The technical solution of utility model is as follows:
A kind of Z axis lowering or hoisting gear of printing machine workbench is provided with the base connecting plate between two bases, also be provided with linear guides on base; The base connecting plate is provided with the screw mandrel of servomotor and vertical direction; Servomotor drives the screw mandrel rotation by synchronizing wheel-synchronous belt drive mechanism;
The elevating bracket that links to each other with the printing machine workbench is connected with screw mandrel by the feed screw nut; Also be provided with the slide block suitable with linear guides on the elevating bracket.
Described linear guides is 4.
Beneficial effect:
The Z axis lowering or hoisting gear of printing machine workbench of the present utility model by the integral structure that two bases, a sleeve screw rod, quadruplet slide rail etc. form, is compared existing Z axis lowering or hoisting gear, and is all more secure aspect the stationarity of lifting platform and kinematic accuracy.All improved a class to the integral body of printing machine fortune property precision and to printing precision, the printing quality of product.
The anti-balanced capacity of Z axis lowering or hoisting gear of this printing machine workbench is strong, can better guarantee platform in the initial point position, capture position, printing position be parallel lifting all the time, and be namely all parallel with benchmark at these several diverse location pause rear platform faces.These printing precision and press qualities to product are more secure.
Description of drawings
Fig. 1 is the general structure schematic diagram (side view) of the Z axis lowering or hoisting gear of printing machine workbench of the present utility model;
Fig. 2 is the general structure schematic diagram (one of stereogram) of the Z axis lowering or hoisting gear of printing machine workbench of the present utility model;
Fig. 3 is the general structure schematic diagram (stereogram two) of the Z axis lowering or hoisting gear of printing machine workbench of the present utility model;
Label declaration: 1-elevating bracket, 2-ball screw, 3-base, 4-linear slide rail, 5-base connecting plate, 6-servomotor, 7-bearing, 8-synchronizing wheel.
The specific embodiment
Below with reference to the drawings and specific embodiments the utility model is described in further details:
Embodiment 1:
As Figure 1-3, a kind of Z axis lowering or hoisting gear of printing machine workbench is provided with the base connecting plate between two bases, also is provided with linear guides on base; The base connecting plate is provided with the screw mandrel of servomotor and vertical direction; Servomotor drives the screw mandrel rotation by synchronizing wheel-synchronous belt drive mechanism;
The elevating bracket that links to each other with the printing machine workbench is connected with screw mandrel by the feed screw nut; Also be provided with the slide block suitable with linear guides on the elevating bracket.
Described linear guides is 4.
Base is two, links to each other by connecting plate.
Fig. 2 and Fig. 3 are respectively the stereogram that adopts visual angle, bottom and visual angle, top.
The Z axis lowering or hoisting gear of this printing machine workbench specifically is used on the SMT full-automatic vision printing machine, and the workbench of printing machine is raised to the capture position again to the printing position from the initial point position, and makes back and forth a kind of device of fortune fortune in these three positions.
Ball screw is installed on the described base connecting plate by bearing-bearing block.2 synchronizing wheels are installed on respectively the axle head of described servomotor and screw mandrel, and two synchronizing wheels are connected to form driving-chain by Timing Belt again.The described base connecting plate that assembles is installed on two bases, described four slide rails in twos one group be installed on respectively on described two bases, four slide rails are loaded onto respectively slide block, described elevating bracket is installed on described feed screw nut and the slide block.Yet workbench is installed on the described elevating bracket, and the positive wraparound of motor makes elevating bracket by the rotation of Timing Belt drive screw mandrel, and slide rail pumps on the base along being installed on.Realize working plate in the initial point position, capture position, printing position all with the base datum level capable state of keeping tie.
Servomotor work drives the screw mandrel rotation by synchronizing wheel, Timing Belt makes elevating bracket and workbench rise to the second working position (capture position) along being installed on base Linear slide rail, servomotor remains in operation and drives elevating bracket and workbench rises to the 3rd working position (printing position), finishes after the printing servomotor counter-rotating and realizes that elevating bracket and working plate get back to the initial point position.Even if finish like this a working cycles.The function of the Z axis lowering or hoisting gear of this printing machine workbench makes workbench frequently move reciprocatingly at these several working positions exactly.