Oil pressure feeding drilling device for lathe tailstock

Abstract

The utility model provides a lathe tailstock oil pressure feeding drilling device, and belongs to the field of machine tool drilling structures. The drilling machine comprises a tailstock pressing plate and a tailstock which are arranged on a machine body, a sliding groove is formed in the tailstock pressing plate, the tailstock is arranged above the sliding groove and can move along the sliding groove, a drilling structure is arranged on the tailstock, and the drilling machine further comprises an oil pressure feeding structure for driving the tailstock to move towards or away from a workpiece. The drilling feeding device has the advantages of being simple in structure, easy and convenient to operate and capable of greatly improving the drilling feeding work efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to a lathe drilling structure especially a lathe tailstock oil pressure feeding drilling device. BACKGROUND

[0002] With the continuous development of the company and the delivery time requirement of the customer to the product is shorter and shorter, therefore need production and manufacturing department continuously improves the production and processing efficiency to meet the needs of the customer, and the traditional sleeve type hole processing mainly still relies on manual feeding drilling on the ordinary lathe or drilling machine to complete.

[0003] The traditional ordinary lathe tailstock drilling is the mode of feeding by the hand wheel of the screw rod, moves the drill bit to the workpiece position by rotating the hand wheel on the tailstock, and then the lathe starts drilling, and the hand wheel feeding is needed during the drilling process until the drilling is completed. UTILITY MODEL CONTENTS

[0004] In order to solve the problems in the prior art, the utility model provides a lathe tailstock oil pressure feeding drilling device.

[0005] The utility model discloses a tailstock pressure plate and tailstock are set on the lathe bed, be equipped with sliding slot on the tailstock pressure plate, the tailstock is set on the sliding slot top and can move along the sliding slot, be equipped with drilling structure on the tailstock still, including the oil pressure feeding structure of driving the tailstock moves to or away from workpiece.

[0006] The utility model makes further improvement, and the oil pressure feeding structure includes the oil cylinder, the oil cylinder is fixed on the lathe bed through the oil cylinder fixed plate, and the piston rod of the oil cylinder is fixedly connected with the tailstock through the oil cylinder connecting sleeve.

[0007] The utility model makes further improvement, and the oil pressure feeding structure still includes the electromagnetic reversing valve of controlling the feeding direction of the oil cylinder.

[0008] The utility model makes further improvement and still includes the stroke adjusting structure that sets up on the tailstock pressure plate, and the stroke adjusting structure controls the moving stroke of the tailstock.

[0009] The utility model makes further improvement, and the stroke adjusting structure includes the stroke adjusting rod that sets up on the tailstock pressure plate, the adjusting block that is sleeved on the adjusting rod and moves synchronously with the tailstock, and the adjusting rod fixed block for fixing both ends of the stroke adjusting rod, the adjusting rod fixed block is fixed on the tailstock pressure plate, and the setting direction of the stroke adjusting rod is consistent along the length direction of the sliding slot.

[0010] The utility model is further improved in that the two adjusting rod fixing blocks are respectively provided with an in-position switch.

[0011] The utility model is further improved in that the oil pressure feeding structure further includes a flow regulating valve arranged on the bed, one end of the flow regulating valve is connected to the oil tank, and the other end is connected to the oil inlet of the oil cylinder.

[0012] The present invention is further improved in that the drilling structure includes a drill bit and a tailstock sleeve which is arranged on the tailstock and matches the drill bit and is used to fix the drill bit.

[0013] The present invention is further improved to further include a handwheel, wherein the driving end of the handwheel is cooperatively connected with the tailstock sleeve and is used for locking the drill bit on the tailstock sleeve.

[0014] Compared with the existing technology, the present invention has the following advantages: by disposing a tailstock pressure plate below the tailstock and using a hydraulic feed structure to drive the entire tailstock to move, the present invention realizes a tailstock hydraulic automatic feed drilling method. This has the advantages of reducing the labor intensity of the operator, being simple in structure and easy to operate, and greatly improving the drilling feed efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a structural schematic diagram of another perspective of the utility model;

[0017] Reference numerals:

[0018] 1-bed, 2-locking nut, 3-tailstock pressure plate, 4-cylinder connecting sleeve, 5-cylinder fixing plate, 6-cylinder, 7-tailstock, 8-drill bit, 9-workpiece, 10-three-jaw chuck, 11-flow valve fixing plate, 12-flow regulating valve, 13-adjusting block, 14-adjusting rod fixing block, 15-stroke adjusting rod. DETAILED DESCRIPTION

[0019] The purpose of this utility model is to reduce the labor intensity of operators when drilling holes in sleeve-type workpieces, improve work efficiency, reduce production costs, and thus enhance the competitiveness of the company's products in the market. This utility model changes the traditional design concept and, based on the existing manual feed structure, conducts a complete transformation to adopt an automatic feed drilling method. The utility model is further described in detail below with reference to the accompanying drawings and embodiments.

[0020] like Figure 1 and Figure 2As shown, the present invention includes a tailstock platen 3 and a tailstock 7 mounted on a machine tool bed 1. The tailstock platen 3 is provided with a sliding groove. The tailstock 7 is positioned above the sliding groove and is capable of moving along the sliding groove. The tailstock 7 is provided with a drilling structure. A three-jaw chuck 10 is provided on the side wall of the machine tool facing the tailstock 7. The three-jaw chuck 10 is used to secure a workpiece 9. The present invention also includes a hydraulic feed structure that drives the tailstock 7 toward or away from the workpiece 9.

[0021] The hydraulic feed structure of this example includes an oil cylinder 6, which is fixed to the bed 1 via an oil cylinder fixing plate 5. A oil cylinder connecting sleeve 4 is fixed to the piston rod of the oil cylinder 6, and the other end of the oil cylinder connecting sleeve 4 is fixedly connected to the tailstock 7 via a locking nut 2. When the piston rod moves telescopically, it can push the tailstock 7 to move along the sliding groove.

[0022] The drilling structure in this example includes a drill bit 8 and a tailstock sleeve mounted on the tailstock 7, which matches the drill bit and is used to secure the drill bit. A handwheel 7 is also provided on the side of the tailstock 7 opposite to where the drill bit is mounted, for locking the drill bit 8 to the tailstock sleeve or releasing the drill bit 8 from the tailstock sleeve in the opposite direction. For example, when the drill bit 8 and the tailstock sleeve are threaded together, the handwheel can drive the tailstock sleeve to rotate and tighten or loosen it. Alternatively, a handwheel can be used to secure the drill bit 8 using a retaining structure such as a pin.

[0023] The hydraulic feed structure also includes an electromagnetic reversing valve (not shown in the figure) for controlling the feed direction of the oil cylinder. In addition, an overflow valve can be provided on the hydraulic structure to adjust the feed pressure of the drill bit 8 on the tailstock sleeve.

[0024] like Figure 2 As shown, this example further includes a stroke adjustment structure provided on the tailstock pressure plate 9, and the stroke adjustment structure controls the moving stroke of the tailstock.

[0025] Preferably, the stroke adjustment structure of this example includes a stroke adjustment rod 15 provided on the tailstock pressure plate 3, an adjustment block 13 sleeved on the adjustment rod 15 and moving synchronously with the tailstock 7, and adjustment rod fixing blocks 14 for fixing the two ends of the stroke adjustment rod 15. The adjustment rod fixing blocks 14 are fixed to the tailstock pressure plate 3, and the setting direction of the stroke adjustment rod 15 is consistent along the length direction of the sliding groove. In-position switches are respectively provided on the two adjustment rod fixing blocks 14. When the adjustment block 13 moves to the adjustment rod fixing block 14 and collides with the adjustment rod fixing block 14, the in-position switch receives an in-position signal and controls the adjustment direction of the oil cylinder 6.

[0026] The oil pressure feeding structure further comprises a flow regulating valve 12 arranged on the bed 1, the flow regulating valve 12 being fixed on the bed 1 of the machine tool through a flow valve fixing plate 11, one end of the flow regulating valve 12 being connected with an oil tank, and the other end being connected with an oil inlet of the oil cylinder.

[0027] The working principle of the utility model is as follows:

[0028] The drill bit 8 is arranged in the Morse taper hole of the tail seat sleeve, the workpiece 9 is clamped in the three-jaw chuck 10 of the lathe, when the oil cylinder 6 is filled with hydraulic oil, the piston rod of the oil cylinder 6 drives the tail seat 7 to move forward through the oil cylinder connecting sleeve 4, when the end surface of the workpiece 9 contacted by the drill bit 8 is moved to, the three-jaw chuck 10 drives the workpiece 9 to rotate, and drilling is realized, during the drilling process, the oil cylinder 6 continuously drives the drill bit 8 to feed until a hole with a suitable depth is drilled, and the drilling is completed.

[0029] After the drilling is completed, the piston rod of the oil cylinder 6 pulls the tail seat 7 to retreat through the oil cylinder connecting sleeve 4, and the change of the feeding direction is automatically sensed and changed through the travel switch. Of course, the change of the feeding direction of the example can also be controlled by manually rotating the switch of the electromagnetic reversing valve; the drill bit feeding pressure arranged on the tail seat sleeve can be adjusted through the overflow valve on the hydraulic station, and the feeding speed and stroke can be adjusted and controlled through the flow regulating valve 12 and the travel switch.

[0030] Compared with the existing tail seat drilling feeding technology of the common lathe, the utility model has the advantages of reducing the labor intensity of the operator, being simple to operate, and improving the drilling feeding work efficiency. Since the tail seat oil pressure feeding device of the lathe adopts the oil pressure automatic feeding drilling tool feeding mode, the device has the characteristics of simple structure, easy operation, remarkable practical use effect, etc.

[0031] The specific embodiments described above are the preferred embodiments of the utility model, and the specific implementation range of the utility model is not limited by the above, the range of the utility model includes but is not limited to the specific embodiments, and equivalent changes made according to the utility model are within the protection range of the utility model.

Claims

1. A lathe tailstock hydraulic feed drilling device, characterized by: It includes a tailstock pressure plate and a tailstock arranged on the bed, the tailstock pressure plate is provided with a sliding groove, the tailstock is arranged above the sliding groove and can move along the sliding groove, the tailstock is provided with a drilling structure, and also includes a hydraulic feed structure that drives the tailstock to move toward or away from the workpiece.

2. The lathe tailstock hydraulic feed drilling device according to claim 1, characterized in that: The hydraulic feeding structure includes an oil cylinder, which is fixed to the bed through an oil cylinder fixing plate, and a piston rod of the oil cylinder is fixedly connected to the tailstock through an oil cylinder connecting sleeve.

3. The lathe tailstock hydraulic feed drilling device according to claim 2, characterized in that: The oil pressure feeding structure also includes an electromagnetic reversing valve for controlling the feeding direction of the oil cylinder.

4. The lathe tailstock hydraulic feed drilling device according to claim 2, characterized in that: It also includes a stroke adjustment structure arranged on the tailstock pressure plate, and the stroke adjustment structure controls the moving stroke of the tailstock.

5. The lathe tailstock hydraulic feed drilling device according to claim 4, characterized in that: The stroke adjustment structure includes a stroke adjustment rod arranged on the tailstock pressure plate, an adjustment block sleeved on the adjustment rod and moving synchronously with the tailstock, and an adjustment rod fixing block for fixing the two ends of the stroke adjustment rod. The adjustment rod fixing block is fixed to the tailstock pressure plate, and the setting direction of the stroke adjustment rod is consistent with the length direction of the sliding groove.

6. The lathe tailstock hydraulic feed drilling device according to claim 5, characterized in that: The two adjusting rod fixing blocks are respectively provided with an in-position switch.

7. The lathe tailstock hydraulic feed drilling device according to claim 2, characterized in that: The hydraulic feed structure further comprises a flow regulating valve arranged on the bed, one end of the flow regulating valve is connected to the oil tank, and the other end is connected to the oil inlet of the oil cylinder.

8. The lathe tailstock hydraulic feed drilling device according to any one of claims 1 to 7, characterized in that: The drilling structure includes a drill bit and a tailstock sleeve arranged on the tailstock and matched with the drill bit for fixing the drill bit.

9. The lathe tailstock hydraulic feed drilling device according to claim 8, characterized in that: It also includes a handwheel, the driving end of which is in cooperative connection with the tailstock sleeve and is used for locking the drill bit on the tailstock sleeve.

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