Ejector pin cutting device

Abstract

The utility model provides an ejector pin cutting device which comprises a working table, a cutting piece arranged on the working table, a first driving structure for driving the cutting piece to rotate, a supporting seat arranged on the working table, a fixing seat hinged to the supporting seat, and a limiting structure for limiting the rotating position of the fixing seat. A cutting groove corresponding to the cutting blade is formed in the fixing base, a groove for containing a workpiece is formed in the top face of the fixing base in the length direction, a workpiece positioning structure for positioning the workpiece is arranged at the tail end of the groove in the workpiece feeding direction, and a material pressing structure for limiting the workpiece is further arranged on the fixing base. The utility model has the beneficial effects of simple structure, low cost and convenience in operation.

Description

Technical Field

[0001] The utility model relates to an ejector pin processing structure, in particular to an ejector pin cutting device. Background Art

[0002] The ejector pin is a slender part, which is commonly used in mechanical processing. Its main uses are: First, it can be used as an ejector plastic mold accessory, used in plastic molds to separate the product from the mold, also called a push rod, inlay pin, center pin, support pin, etc. Second, the top of the lathe is also called an ejector pin, which is a conical metal rod with a head used to support the workpiece and make the workpiece rotate around it.

[0003] With the growth of the company's ejector business volume, the production department is urgently required to continuously improve the production efficiency of ejector material cutting when cutting ejectors; the existing ejector cutting processing relies on sawing on equipment such as sawing machines, and due to reasons such as equipment structure and stroke when loading and unloading this equipment, when cutting ejector materials of different workpiece sizes, the machine tool adjustment time is long and the workpiece feed amount is small, which leads to low cutting production efficiency. Utility Model Content

[0004] In order to solve the problems in the prior art and improve the production efficiency of cutting materials when cutting ejector pins of different lengths, the utility model provides an ejector pin cutting device.

[0005] The utility model includes a workbench, a cutting blade arranged on the workbench, a first driving structure for driving the cutting blade to rotate, a supporting seat arranged on the workbench, a fixed seat hinged to the supporting seat, and a limiting structure for limiting the rotation position of the fixed seat. The fixed seat is vertically arranged with the cutting blade, the fixed seat is provided with a cutting groove corresponding to the cutting blade, the top surface of the fixed seat is provided with a groove for placing a workpiece along the length direction, the end of the groove in the direction of feeding the workpiece is provided with a workpiece positioning structure for positioning the workpiece, and the fixed seat is also provided with a pressing structure for limiting the workpiece.

[0006] The utility model is further improved and further comprises a length adjustment structure for adjusting the length of the ejector pin to be processed, wherein the length adjustment structure is arranged on the fixing seat, and the workpiece positioning structure is arranged on the length adjustment structure.

[0007] The utility model is further improved, the length adjustment structure includes a measuring structure fixing seat fixed on the side of the fixing seat, the measuring structure fixing seat is provided with a ruler for measuring length, a measuring block arranged on the upper surface of the ruler and capable of adjusting the position on the ruler, a locking handle for locking the measuring block on the measuring structure fixing seat, and the workpiece positioning structure is arranged on the measuring block and corresponds to the position of the groove.

[0008] The present utility model is further improved. The first driving structure includes a main shaft motor, a main shaft seat fixed on the workbench, and a main shaft arranged on the main shaft seat. One end of the main shaft is linked with the driving shaft of the main shaft motor through a belt, and the cutting blade is fixed on the other end of the main shaft.

[0009] The present utility model is further improved. The workbench is arranged on a frame, and the frame is provided with a plurality of supporting feet, and foot pads are arranged below the supporting feet.

[0010] The present utility model is further improved. The material pressing structure includes a cylinder and a pressing rod driven by the cylinder, and the end of the pressing rod is arranged corresponding to the groove.

[0011] The present utility model is further improved. The cylinder is an operating handle for driving the fixed seat to rotate to realize the cutting operation of the workpiece.

[0012] The present utility model is further improved. The limiting structure is a limit switch arranged on the side of the fixed seat opposite to the cutting blade.

[0013] Another improvement of the present utility model is that the limiting structure is a baffle arranged on the side of the fixed seat opposite to the cutting blade.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows: By arranging a workpiece positioning structure, during processing, as long as the position of the workpiece positioning structure is adjusted, the feeding amount of the ejector pin material can be conveniently controlled. The structure is relatively simple, the cost is low, and the operation is convenient.

[0015] By arranging a length adjustment mechanism and arranging the workpiece positioning structure on the length adjustment mechanism, when adjusting workpieces with different length dimensions, the position of the workpiece positioning structure on the length adjustment structure can be used. The present utility model is provided with a ruler on the length adjustment structure, and it can be adjusted intuitively and conveniently without additional comparison and measurement, further improving the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the present utility model;

[0017] Figure 2 is a schematic structural diagram of another perspective of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The present utility model will be further described in detail below with reference to the drawings and embodiments.

[0019] As Figure 1 and Figure 2 shown, the present utility model includes a workbench 1, the workbench 1 is arranged on a frame 2, the frame 2 is provided with a plurality of supporting feet, and foot pads 4 are arranged below the supporting feet.

[0020] A cutting blade 22 for cutting workpieces is provided on a workbench 1, and a cutting blade guard 11 is further provided outside the cutting blade to protect the operator. The utility model further includes a first driving structure for driving the cutting blade to rotate, a support seat 19 provided on the workbench 1, a fixed seat 8 hinged to the support seat 19, and a limiting structure for limiting the rotational position of the fixed seat 8. The fixed seat 8 is arranged perpendicular to the cutting blade 22. A cutting groove 801 corresponding to the cutting blade 22 is provided on the fixed seat 8. A groove 802 for placing the workpiece 14 is provided on the top surface of the fixed seat 8 along the length direction. A workpiece positioning structure 20 for positioning the workpiece is provided at the end of the groove 802 in the feeding direction of the workpiece. A pressing structure for limiting the workpiece is further provided on the fixed seat 8.

[0021] By arranging the workpiece positioning structure 20 in the utility model, during processing, as long as the position of the workpiece positioning structure 20 is adjusted, the feeding amount of the ejector pin material can be conveniently controlled. The structure is relatively simple, the cost is low, and the operation is convenient. A cutting groove 801 is provided at a position corresponding to the cutting blade 22 in the utility model, so that the fixed seat 8 can move along the cutting blade 22 through the support seat 19 to complete workpiece cutting, or move away from the cutting blade 22 for feeding after cutting.

[0022] Preferably, the utility model further includes a length adjustment structure for adjusting the length of the ejector pin to be processed. The length adjustment structure is provided on the fixed seat 8, and the workpiece positioning structure 20 is provided on the length adjustment structure.

[0023] In this example, the length adjustment structure adopts a slider quick positioning structure, including a measuring structure fixed seat 9 fixed on the side surface of the fixed seat 8. A ruler 18 for measuring length is provided on the measuring structure fixed seat 9. A measuring block 15 is arranged on the upper surface of the ruler 18 and can be adjusted in position on the ruler. A locking handle 21 for locking the measuring block 15 on the measuring structure fixed seat 9 is provided. The workpiece positioning structure 20 is arranged on the measuring block 15 and corresponds to the position of the groove 802. The workpiece positioning structure 20 in this example is a workpiece positioning rod. The workpiece positioning rod faces the groove. The workpiece 14 is limited in the groove. When moving in the direction of the workpiece positioning rod, when the end of the workpiece 14 abuts against the end surface of the workpiece positioning rod, the feeding is completed, and then the fixed seat 8 is operated to move towards the cutting blade 22 to complete the cutting.

[0024] By arranging the length adjustment mechanism in the utility model and arranging the workpiece positioning structure on the length adjustment mechanism, when adjusting workpieces with different length dimensions, the position of the workpiece positioning structure on the length adjustment structure can be used. A ruler is arranged on the length adjustment structure in the utility model, and it can be adjusted intuitively and conveniently without additional comparison and measurement, further improving the processing efficiency.

[0025] As Figure 1 and Figure 2 shown, the blank holding structure in this example includes a cylinder 10 and a pressure bar driven by the cylinder 10. The end of the pressure bar is correspondingly arranged opposite to the groove 802, and the end portion can press the workpiece 14 against the groove 802 to prevent errors caused by the workpiece jumping during cutting. The cylinder 10 is fixed on the fixed seat 8 through a cylinder fixing seat 16 and swings together with the fixed seat 8.

[0026] Preferably, the cylinder 10 in this example can also be used as an operating handle. By operating the cylinder 10, the fixed seat 8 is driven to swing, so as to realize cutting or feeding, thus making the structure of the present utility model simpler.

[0027] In order to improve the operation efficiency and ensure the operation consistency, the limit structure in this example is a limit switch 17 arranged on the side of the fixed seat opposite to the cutting blade 22. In order to protect the whole device and prevent the device from rubbing against other operators or equipment, a baffle 7 is further arranged on the side of the workbench 1 opposite to the operation side.

[0028] As another embodiment of the present utility model, a baffle 7 can also be directly arranged in this example as the limit for the fixed seat 8 to rotate in place.

[0029] As Figure 1 and Figure 2 shown, the first driving structure in this example includes a main shaft motor 6 arranged under the workbench 1, a main shaft seat 12 fixed on the workbench 1, and a main shaft 13 arranged on the main shaft seat 12. One end of the main shaft 13 is linked with the driving shaft of the main shaft motor 6 through a belt, and the cutting blade 22 is fixed on the other end of the main shaft 2. The main shaft motor 6 is fixed on the machine frame through a motor fixing plate 5. A belt protection cover 3 is further arranged outside the driving shaft, belt and main shaft of the main shaft motor 6 to improve the safety of the device. Of course, the first driving structure in this example can also adopt a pneumatic or hydraulic driving structure.

[0030] For the workpiece (ejector pin material) of the present utility model, a clamping method using a fixed seat and a cylinder for pressing the material is adopted, and the electromagnetic reversing valve controlling the cylinder commutation is controlled by a limit switch; while the grinding wheel cutting disc is installed at the shaft end of the main shaft, and the main shaft motor drives the main shaft pulley through a belt to drive the main shaft cutting disc to rotate. By manually pushing the pressing cylinder, the cutting operation of the workpiece can be carried out. When adjusting workpieces of different lengths, it can be adjusted to the appropriate position by loosening the locking handle screw on the steel ruler and then locking the handle screw. Compared with the existing sawing machine that clamps the material by means of a vise, due to reasons such as the machine tool stroke and structure, it takes a long time to adjust the machine tool for workpieces of different lengths, and the working efficiency is low. Structurally speaking, the device of the present utility model is two completely different machine tool structures, having the advantages of relatively simple structure, small floor area, easy and convenient operation, and high working efficiency. It improves the production efficiency of cutting materials for ejector pins of different lengths, thus effectively reducing the cutting production cost and enhancing the competitiveness of the company's products in the market.

[0031] The above-mentioned specific implementation manners are the preferred implementation manners of the present utility model, and do not limit the specific implementation scope of the present utility model. The scope of the present utility model includes but is not limited to this specific implementation manner. All equivalent changes made in accordance with the present utility model are within the protection scope of the present utility model.

Claims

1. A ejector cutting device, characterized in that: It includes a workbench, a cutting blade arranged on the workbench, a first driving structure for driving the cutting blade to rotate, and also includes a supporting seat arranged on the workbench, a fixed seat hinged to the supporting seat, and a limiting structure for limiting the rotation position of the fixed seat. The fixed seat is vertically arranged with the cutting blade, and the fixed seat is provided with a cutting groove corresponding to the cutting blade. The top surface of the fixed seat is provided with a groove for placing a workpiece along the length direction, and the end of the groove in the direction of feeding the workpiece is provided with a workpiece positioning structure for positioning the workpiece. The fixed seat is also provided with a pressing structure for limiting the workpiece.

2. The ejector cutting device according to claim 1, characterized in that: It also includes a length adjustment structure for adjusting the length of the ejector pin to be processed, wherein the length adjustment structure is arranged on the fixing seat, and the workpiece positioning structure is arranged on the length adjustment structure.

3. The ejector cutting device according to claim 2, characterized in that: The length adjustment structure includes a measuring structure fixing seat fixed on the side of the fixing seat, a ruler for measuring length is provided on the measuring structure fixing seat, a measuring block is arranged on the upper surface of the ruler and can adjust the position on the ruler, a locking handle is used to lock the measuring block on the measuring structure fixing seat, and the workpiece positioning structure is arranged on the measuring block and corresponds to the position of the groove.

4. The ejector cutting device according to any one of claims 1 to 3, characterized in that: The first driving structure includes a spindle motor, a spindle seat fixed on the workbench, and a spindle arranged on the spindle seat. One end of the spindle is linked to the driving shaft of the spindle motor through a belt, and the cutting blade is fixed on the other end of the spindle.

5. The ejector cutting device according to any one of claims 1 to 3, characterized in that: The workbench is arranged on a frame, the frame is provided with a plurality of supporting feet, and foot pads are arranged under the supporting feet.

6. The ejector cutting device according to any one of claims 1 to 3, characterized in that: The material pressing structure comprises a cylinder and a pressing rod driven by the cylinder, and the end of the pressing rod is arranged corresponding to the groove.

7. The ejector cutting device according to claim 6, characterized in that: The cylinder is an operating handle for driving the fixing seat to rotate and realize workpiece cutting.

8. The ejector cutting device according to any one of claims 1 to 3, characterized in that: The limit structure is a limit switch arranged on the side of the fixing seat opposite to the cutting blade.

9. The ejector cutting device according to any one of claims 1 to 3, characterized in that: The limiting structure is a baffle plate arranged on the opposite side of the fixing seat and the cutting blade.

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