Positioning mechanism of a precision engraving machine

Abstract

The utility model discloses a positioning mechanism of a precision engraving machine, including: an operating table, a top plate fixedly installed on the upper surface of the operating table, a precision engraving machine fixedly installed on the lower surface of the top plate, a baffle plate fixedly installed on the upper surface of the operating table, a clamping positioning mechanism fixedly installed on one side of the baffle plate, the clamping ends of the clamping positioning mechanism are located on both sides of the upper surface of the operating table, and the baffle plate can allow the workpiece to touch the surface and be clamped by the clamping positioning mechanism at the center of the upper surface of the operating table for position positioning. The present application uses the design of the clamping positioning mechanism to enable the staff to adjust the clamping force according to the material of the workpiece before clamping the workpiece, so that when the adjusted clamping force is reached, the pressure sensor will automatically stop applying pressure, which can ensure that the workpiece remains stable and fixed during the clamping process, and can avoid displacement or deformation of the workpiece, thereby ensuring the stability and consistency of the processing quality.

Description

Technical Field

[0001] The utility model relates to the technical field of precision engraving machine positioning, in particular to a positioning mechanism for a precision engraving machine. Background Art

[0002] Precision engraving machine is a kind of CNC machine tool. Metal precision engraving machine can perform non-contact cutting and punching on metal or non-metallic plates and pipes. It is particularly suitable for laser cutting of stainless steel plates, iron plates, silicon wafers, ceramic sheets, titanium alloys, epoxy, A3 steel, diamond and other materials. In the process of processing, manipulators are often used for automatic loading and unloading to improve efficiency and reduce costs. However, the positioning accuracy of manipulators is far inferior to that of manual labor. Therefore, it is necessary to position the workpiece before processing.

[0003] For example, the Chinese patent announcement number CN212046639U discloses a positioning mechanism for a glass engraving machine, which includes a workbench, a guide rail pair, a linkage unit, and at least two angle components. The workbench has at least two stations for placing workpieces. The guide rail pair is arranged below the workbench, including at least two parallel guide rails, each guide rail is equipped with at least one slider, and the slider is nested and slid on the guide rail. The linkage unit includes a sliding plate and a side moving plate, the sliding plate is fixedly connected to the side moving plate, and the sliding plate is fixedly connected to the slider. At least two angle components are fixedly installed on the side moving plate and are arranged above the workbench, wherein for the workpieces at the same station on the workbench, only one angle component can be moved along the guide rail pair to position the corresponding workpiece on the workbench. In this way, the positioning mechanism of the utility model can quickly and accurately position multiple workpieces.

[0004] However, the above-mentioned positioning mechanism for the glass engraving machine cannot adjust the clamping force according to the material of the workpiece during the process of clamping and positioning the workpiece. Workpieces of different materials have different hardness, surface roughness and strength characteristics. If a fixed clamping force is used, it will cause the workpieces of some materials to shift or deform, especially when vibration or cutting force is generated during the processing. Utility Model Content

[0005] The utility model aims to provide a positioning mechanism for a precision engraving machine to solve the problem in the background art that different clamping forces cannot be adjusted according to the material of the workpiece during the clamping and positioning of the workpiece.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A positioning mechanism for a precision engraving machine comprises: an operating table, a top plate fixedly mounted on the upper surface of the operating table, a precision engraving machine fixedly mounted on the lower surface of the top plate, a blocking plate fixedly mounted on the upper surface of the operating table, a clamping positioning mechanism fixedly mounted on one side of the blocking plate, and clamping ends of the clamping positioning mechanism being located on both sides of the upper surface of the operating table.

[0008] Preferably, the blocking plate can allow the workpiece to contact the surface and be clamped by a clamping and positioning mechanism at the center of the upper surface of the operating table for positioning, so that it can be auxiliaryly aligned with the engraving machine.

[0009] Preferably, the clamping and positioning mechanism includes an air pump, which is fixedly installed on the upper surface of the operating table and enclosed by a barrier plate, a connecting pipe is fixedly installed on one end of the air port of the air pump, a solenoid valve is fixedly installed on one end of the connecting pipe, the other end of the solenoid valve is connected to a two-way pipe, both sides of the two-way pipe are connected and installed with air cylinders respectively, the air cylinder is fixedly installed on both sides of the upper surface of the operating table, a piston disk is slidably installed in the air cylinder, a connecting rod is fixedly installed on one end of the piston disk, and a top clamp is fixedly installed on one end of the connecting rod.

[0010] Preferably, the electric control ends of the air pump and the solenoid valve are both controlled by a controller, and the controller is fixedly mounted on one end of the operating table.

[0011] Preferably, a pressure sensor is fixedly installed in the connecting rod, the pressure sensing end of the pressure sensor passes through the top clamping plate and is flush with the top clamping plate, and the signal output end of the pressure sensor is connected to the signal input end of the controller.

[0012] Preferably, the model of the pressure sensor may be TE Connectivity: MS45, M5600, ECL and other series.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. Through the design of the clamping and positioning mechanism, the baffle plate and the precision engraving machine, when engraving the workpiece, the staff can place the workpiece on the upper surface of the operating table and push the workpiece to touch one end of the baffle plate, and then start the clamping and positioning mechanism to synchronously move the workpiece to the center on the upper surface of the operating table, so that it can be clamped on both sides of the workpiece, and through the effect of synchronous clamping, the workpiece can be pushed to the center of the operating table for clamping, and then a precise positioning effect can be applied to the workpiece, so that it can assist in being flush with the precision engraving machine, and the clamping and positioning mechanism is driven by air pushing, so that the force of touching on both sides of the workpiece can be guaranteed to be equal, and the pressing force on both sides of the workpiece can also be adjusted by the staff according to the material of the workpiece, so that it will automatically stop applying pressure after reaching the adjusted clamping force, and the adjustable pressing force function can ensure that the workpiece remains stable and fixed during the clamping process, and the displacement or deformation of the workpiece can be avoided, thereby ensuring the stability and consistency of the processing quality.

[0015] 2. Through the design of air pump, connecting pipe, solenoid valve, two-way pipe, piston plate, connecting rod, top clamping plate and pressure sensor, after the workpiece is pressed against one end of the baffle plate, the air pump and solenoid valve can be started, and air can be supplied to the two-way pipe through the solenoid valve, and the two-way pipe will supply gas to two sets of breathers, and the breathers will push the piston plate to slide to the other end in the breather through air pressure, so that the piston plate can drive the top clamping plate at one end of the connecting rod to move toward the center synchronously, so that the top clamping plate can press against both sides of the workpiece, and through the effect of synchronous pressing, the top clamping plate can push the workpiece to the center of the operating table, so that a precise positioning effect can be applied to the workpiece, so that it can be assisted to be flush with the precision engraving machine, and the piston plate passes through the air Pushing can ensure that the force of the top clamping plate pressing on both sides of the workpiece is equal, and the top clamping plate pressing on both sides of the workpiece will also drive the pressure sensor to press on the surfaces of both sides of the workpiece. When the set pressure value is reached, a signal will be sent to the controller, and the controller will control the air pump and the solenoid valve to close together, so that the top clamping plate can maintain the current pressure and touch both sides of the workpiece, and then before clamping the workpiece, the staff can adjust the top clamping force according to the material of the workpiece, so that when the adjusted clamping force is reached, the pressure sensor will automatically stop applying pressure, which can ensure that the workpiece remains stable and fixed during the clamping process, and can avoid displacement or deformation of the workpiece, thereby ensuring the stability and consistency of the processing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall top view structure of the positioning mechanism of the precision engraving machine of the utility model;

[0017] Figure 2 This is a schematic diagram of the barrier plate structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the precision engraving machine of the utility model;

[0019] Figure 4 It is a schematic diagram of the structure of the clamping and positioning mechanism of the utility model.

[0020] In the figure: 1. operating table; 101. baffle plate; 102. top plate; 103. engraving machine; 104. controller; 2. clamping and positioning mechanism; 201. air pump; 202. connecting pipe; 203. solenoid valve; 204. breather cylinder; 205. piston disc; 206. connecting rod; 207. top clamp plate; 208. pressure sensor; 209. two-way pipe. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-Figure 4 , the utility model provides the following technical solutions:

[0023] like Figure 1-Figure 3 As shown, a positioning mechanism of a precision engraving machine includes: an operating table 1, a top plate 102 is fixedly installed on the upper surface of the operating table 1, a precision engraving machine 103 is fixedly installed on the lower surface of the top plate 102, a blocking plate 101 is fixedly installed on the upper surface of the operating table 1, a clamping positioning mechanism 2 is fixedly installed on one side of the blocking plate 101, and the clamping ends of the clamping positioning mechanism 2 are located on both sides of the upper surface of the operating table 1.

[0024] The blocking plate 101 can allow the workpiece to contact the surface and be clamped by the clamping and positioning mechanism 2 at the center of the upper surface of the operating table 1 for positioning, so that it is auxiliary and flush with the engraving machine 103.

[0025] Through the design of the clamping and positioning mechanism 2, the blocking plate 101 and the precision engraving machine 103, when engraving the workpiece, the staff can place the workpiece on the upper surface of the operating table 1 and push the workpiece to touch one end of the blocking plate 101, and then start the clamping and positioning mechanism 2 to synchronously move the workpiece to the center of the upper surface of the operating table 1, so that it can be clamped on both sides of the workpiece, and through the effect of synchronous clamping, the workpiece can be pushed to the center of the operating table 1 for clamping, and then a precise positioning effect can be applied to the workpiece, so that it can assist in being flush with the precision engraving machine 103, and the clamping and positioning mechanism 2 is driven by air pushing, so that the force of touching on both sides of the workpiece can be guaranteed to be equal, and the pressing force on both sides of the workpiece can also be adjusted by the staff according to the material of the workpiece, so that it will automatically stop applying pressure after reaching the adjusted clamping force, and the adjustable pressing force function can ensure that the workpiece remains stable and fixed during the clamping process, and the workpiece can be prevented from shifting or deforming, thereby ensuring the stability and consistency of the processing quality.

[0026] like Figure 4 As shown, the clamping and positioning mechanism 2 includes an air pump 201, which is fixedly installed on the upper surface of the operating table 1 and is enclosed by the blocking plate 101, a connecting pipe 202 is fixedly installed at one end of the air port of the air pump 201, a solenoid valve 203 is fixedly installed at one end of the connecting pipe 202, the other end of the solenoid valve 203 is connected to a two-way pipe 209, and both sides of the two-way pipe 209 are respectively connected and installed with air cylinders 204, which are fixedly installed on both sides of the upper surface of the operating table 1, a piston disk 205 is slidably installed in the air cylinder 204, a connecting rod 206 is fixedly installed at one end of the piston disk 205, and a top clamping plate 207 is fixedly installed at one end of the connecting rod 206.

[0027] The electric control ends of the air pump 201 and the solenoid valve 203 are both controlled by the controller 104 , and the controller 104 is fixedly installed at one end of the operating table 1 .

[0028] A pressure sensor 208 is fixedly installed inside the connecting rod 206. The pressure sensing end of the pressure sensor 208 passes through the top clamping plate 207 and is flush with the top clamping plate 207. The signal output end of the pressure sensor 208 is connected to the signal input end of the controller 104. The controller 104 can use an S7-200 ultra-miniaturized PLC controller.

[0029] The model of the pressure sensor 208 may be TE Connectivity: MS45, M5600, ECL and other series.

[0030] Through the design of the air pump 201, the connecting pipe 202, the solenoid valve 203, the two-way pipe 209, the piston disc 205, the connecting rod 206, the top clamping plate 207 and the pressure sensor 208, after the workpiece is pressed against one end of the baffle plate 101, the air pump 201 and the solenoid valve 203 can be started, and air can be supplied to the two-way pipe 209 through the solenoid valve 203, and the two-way pipe 209 will supply the gas to the two sets of ventilation cylinders 204, and the ventilation cylinders 204 will push the piston disc 205 to slide to the other end in the ventilation cylinders 204 through the air pressure, so that the piston disc 205 can drive the top clamping plate 207 at one end of the connecting rod 206 to move toward the center synchronously, so that the top clamping plate 207 can press against both sides of the workpiece, and through the effect of synchronous pressing, the top clamping plate 207 can push the workpiece to the center of the operating table 1, so that a precise positioning effect can be applied to the workpiece so that it can It can assist in being flush with the precision engraving machine 103, and the piston disc 205 is pushed by air, thereby ensuring that the force of the top clamping plate 207 on both sides of the workpiece is equal, and the top clamping plate 207 pressing on both sides of the workpiece will also drive the pressure sensor 208 to press on the surfaces of both sides of the workpiece. When the set pressure value is reached, a signal will be sent to the controller 104, and the controller 104 will control the air pump 201 and the solenoid valve 203 to close together, so that the top clamping plate 207 can maintain the current top pressure and touch both sides of the workpiece, and then before clamping the workpiece, the staff can adjust the top clamping force according to the material of the workpiece, so that when the adjusted clamping force is reached, the pressure sensor 208 will automatically stop applying pressure, which can ensure that the workpiece remains stable and fixed during the clamping process, and can avoid displacement or deformation of the workpiece, thereby ensuring the stability and consistency of the processing quality.

[0031] The working steps of this scheme are summarized and sorted out according to the above technical scheme: when engraving a workpiece, the staff can place the workpiece on the upper surface of the operating table 1 and push the workpiece to touch one end of the blocking plate 101, and then start the air pump 201 and the solenoid valve 203, and supply air to the double-way pipe 209 through the solenoid valve 203, and the double-way pipe 209 will supply gas to two sets of air cylinders 204, and the air cylinders 204 will push the piston plate 205 to slide to the other end in the air cylinder 204 through the air pressure, so that the piston plate 205 can drive the top clamping plate 207 at one end of the connecting rod 206 to move toward the center synchronously, and then the top clamping plate 207 can touch the two sides of the workpiece, and through the effect of synchronous touching, it can The top clamp 207 pushes the workpiece to the center of the operating table 1, thereby exerting a precise positioning effect on the workpiece, so that it can assist in being flush with the precision engraving machine 103, and the piston plate 205 is pushed by air, thereby ensuring that the force of the top clamp 207 on both sides of the workpiece is equal, and the top clamp 207 pressing on both sides of the workpiece will also drive the pressure sensor 208 to press on the surfaces of both sides of the workpiece. When the set pressure value is reached, a signal will be sent to the controller 104, and the controller 104 will control the air pump 201 and the solenoid valve 203 to close together, so that the top clamp 207 can maintain the current pressure and touch the two sides of the workpiece, and then the precision engraving machine 103 can be started to engrave the workpiece.

[0032] Among them, the engraving machine 103 can select a CNC engraving machine with model RZNC-0501.

[0033] In summary: before clamping the workpiece, the staff can adjust the top clamping force according to the material of the workpiece, so that when the adjusted clamping force is reached, the pressure sensor 208 will automatically stop applying pressure, which can ensure that the workpiece remains stably fixed during the clamping process, and can avoid displacement or deformation of the workpiece, thereby ensuring the stability and consistency of the processing quality.

[0034] Parts not involved in the present invention are the same as the prior art or can be implemented by the prior art. Although the embodiments of the present invention have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A positioning mechanism for a precision engraving machine, characterized in that: include: An operating table (1), wherein a top plate (102) is fixedly mounted on the upper surface of the operating table (1), a precision engraving machine (103) is fixedly mounted on the lower surface of the top plate (102), a blocking plate (101) is fixedly mounted on the upper surface of the operating table (1), a clamping and positioning mechanism (2) is fixedly mounted on one side of the blocking plate (101), and the clamping ends of the clamping and positioning mechanism (2) are located on both sides of the upper surface of the operating table (1).

2. The positioning mechanism of a precision engraving machine according to claim 1, characterized in that: The blocking plate (101) can allow the workpiece to contact the surface and be clamped by the clamping and positioning mechanism (2) at the center of the upper surface of the operating table (1) for positioning, so that it can be aligned with the engraving machine (103).

3. The positioning mechanism of a precision engraving machine according to claim 1, characterized in that: The clamping and positioning mechanism (2) comprises an air pump (201), the air pump (201) is fixedly mounted on the upper surface of the operating table (1) and is enclosed by a baffle plate (101), a connecting pipe (202) is fixedly mounted on one end of the air port of the air pump (201), a solenoid valve (203) is fixedly mounted on one end of the connecting pipe (202), the other end of the solenoid valve (203) is connected to a two-way pipe (209), both sides of the two-way pipe (209) are connected to ventilation cylinders (204) respectively, the ventilation cylinder (204) is fixedly mounted on both sides of the upper surface of the operating table (1), a piston disc (205) is slidably mounted in the ventilation cylinder (204), a connecting rod (206) is fixedly mounted on one end of the piston disc (205), and a top clamping plate (207) is fixedly mounted on one end of the connecting rod (206).

4. The positioning mechanism of a precision engraving machine according to claim 3 is characterized in that: The electric control ends of the air pump (201) and the electromagnetic valve (203) are both controlled by a controller (104), and the controller (104) is fixedly mounted on one end of the operating table (1).

5. The positioning mechanism of a precision engraving machine according to claim 4, characterized in that: A pressure sensor (208) is fixedly installed inside the connecting rod (206), the pressure sensing end of the pressure sensor (208) passes through the top clamping plate (207) and is flush with the top clamping plate (207), and the signal output end of the pressure sensor (208) is connected to the signal input end of the controller (104).

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