CN207952689U - A kind of workpiece medial surface drilling device - Google Patents

Abstract

The utility model relates to a drilling device for the inner surface of a workpiece, which comprises a base plate, a clamping device fixed on the base plate, and a mounting column fixed on the base plate. An L-shaped shell is connected to the mounting column, and the left end of the L-shaped shell slides. No. 1 cylindrical sleeve is installed, and No. 2 cylindrical sleeve is installed in the No. 1 cylindrical sleeve. The left end of the second cylindrical sleeve is equipped with a drill bit and the right end is connected with a spline shaft installed in the L-shaped shell. The motor provided on the bottom plate is connected with a No. 1 bevel gear, and the No. 1 bevel gear meshes with a No. 2 bevel gear installed on the spline shaft. A screw feed device is arranged between the No. 1 cylindrical sleeve and the L-shaped housing. The utility model solves the problem of difficult processing of holes on the inner surface of workpieces, realizes mechanical automatic processing, has small operation difficulty and low labor intensity, reliable hole processing quality, small volume of the whole device, greatly improves work efficiency, and is suitable for large-scale popularization and use.

Description

A drilling device for the inner surface of a workpiece

technical field

The utility model relates to the technical field of drilling machinery, in particular to a drilling device for the inner surface of a workpiece.

Background technique

With the increase of product types in production and manufacturing, the complexity and difficulties encountered in the drilling of workpieces increase. Sometimes it is necessary to process holes on the inner surface of the workpiece. However, there is no targeted equipment in the prior art Drilling holes on the inner surface, generally the internal space of the workpiece is limited, the traditional drilling rig cannot penetrate deep into the workpiece to drill holes, and the drill bit and the motor of the drilling rig are generally distributed on the same axis, which results in a larger size of the drilling rig in the feeding direction , can’t reach into the inside of the workpiece for processing, and the method of manual drilling is difficult to operate and labor-intensive. The manual operation of the electric hand drill is difficult for processing and positioning, and the quality of hole processing is difficult to be guaranteed. It is difficult to process the inner surface of the workpiece. solve.

Contents of the invention

In order to avoid and solve the above-mentioned technical problems, the utility model proposes a drilling device for the inner surface of a workpiece.

The technical problem to be solved by the utility model adopts the following technical solutions to realize:

A drilling device for the inner surface of a workpiece, comprising a base plate, a clamping device fixed on the base plate, and a mounting column fixed on the base plate, an L-shaped housing is connected to the mounting column, and the left end of the L-shaped housing slides A No. 1 cylindrical sleeve is installed, and a No. 2 cylindrical sleeve is installed in the No. 1 cylindrical sleeve. A drill bit is installed on the left end of the No. 2 cylindrical sleeve and a spline shaft installed in an L-shaped housing is connected to the right end of the No. 2 cylindrical sleeve. The L-shaped The housing is fixed with a motor perpendicular to the bottom plate, the motor is connected to a No. 1 bevel gear, and the No. 1 bevel gear meshes with the No. 2 bevel gear installed on the spline shaft. The No. 1 cylindrical sleeve and the L-shaped shell A screw feed device is provided between the bodies.

Preferably, a bearing is installed between the No. 1 cylindrical sleeve and the No. 2 cylindrical sleeve.

Preferably, the screw feeding device includes a slider vertically slidably mounted on the L-shaped housing, a long rod whose one end is hinged on the No. 1 cylindrical sleeve and the other end is hinged on the slider, and is set in a threaded manner. The rotary handwheel on the L-shaped housing, the L-shaped housing is provided with a bar-shaped groove, and the long rod and the No. 1 cylindrical sleeve are fixed on the No. 1 cylindrical sleeve and slide with the bar-shaped slot. As for the matching fixing block, the L-shaped housing is provided with a long groove matching with the sliding block.

Preferably, the long rod is arranged on the L-shaped housing in an obliquely upward straight line from left to right.

Preferably, the clamping device includes a No. 1 splint fixed on the right end of the bottom plate, a mounting seat fixed on the left end of the bottom plate, a push rod mounted on the mounting seat and connected to the No. Wheel on the left.

Preferably, a T-shaped revolving groove is opened on the No. 2 splint, and a disc matching the T-shaped revolving groove is connected to the right end of the push rod.

The beneficial effects of the utility model are:

The utility model invents a device for machining the inner surface hole of the workpiece, which solves the problem that the inner surface hole of the workpiece is difficult to process, and distributes the drill bit and the motor in the vertical direction, so that it can drill holes deep into the workpiece and realize mechanical automation. It solves the problem that the drilling machine cannot drill holes on the inner side of the workpiece. The operation is difficult and labor-intensive, the processing positioning is accurate, the quality of the hole processing is reliable, the whole device is small in size, and can adapt to the processing of most workpieces, greatly improving work efficiency. It is suitable for large-scale promotion and use.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1 is a structural diagram of the utility model;

Figure 2 is a partial enlarged view of A in Figure 1;

Fig. 3 is a partial enlarged view of place B in Fig. 1;

Fig. 4 is a top view of the utility model.

Detailed ways

In order to make the technical means realized by the utility model, creation feature, purpose and effect easy to be understood, the utility model is further elaborated below.

As shown in Figures 1 to 4, a drilling device for the inner surface of a workpiece includes a base plate 1, a clamping device fixed on the base plate 1, and a mounting column 2 fixed on the base plate 1, and the mounting column 2 is connected with L-shaped housing 3, the left end of described L-shaped housing 3 is slidably installed with a No. 1 cylindrical sleeve 4, No. 2 cylindrical sleeve 5 is installed in the No. 1 cylindrical sleeve 4, and No. 2 cylindrical sleeve 5 is installed on the left end of described No. 2 cylindrical sleeve 5. The right end of the drill bit 6 is connected with a spline shaft 7 installed in the L-shaped housing 3, and the L-shaped housing 3 is fixed with a motor 8 perpendicular to the base plate 1. The motor 8 is connected with a bevel gear 9, The No. 1 bevel gear 9 meshes with the No. 2 bevel gear 10 installed on the spline shaft 7 , and a screw feeding device is provided between the No. 1 cylindrical sleeve 4 and the L-shaped housing 3 .

In this way, it is designed as an L-shaped shell 3, which is convenient to put the device into the inside of the workpiece to realize the internal side drilling, and through the meshing of the No. 1 bevel gear 9 and the No. 2 bevel gear 10, the power of the motor 8 is transmitted. When the spline shaft 7 rotates, the No. 2 cylindrical sleeve 5 is driven to rotate, and the drill bit 6 is rotated to drill holes. The spline shaft 7 can make the No. 2 cylindrical sleeve 5 slide on the spline shaft 7 and transmit torque. The feed device provides the feed rate for the drill bit 6 to realize the entire drilling process. This solution realizes the mechanical inner surface for drilling.

A bearing 11 is installed between the No. 1 cylindrical sleeve 4 and the No. 2 cylindrical sleeve 5 . In this way, the frictional force is reduced, which is beneficial to the rotation of the No. 2 cylindrical sleeve 5 on the No. 1 cylindrical sleeve 4 .

The screw feed device includes a slide block 12 vertically slidably mounted on the L-shaped housing 3, a long rod 13 whose one end is hinged on the No. 1 cylindrical sleeve 4 and the other end is hinged on the slide block 12, and a The rotary handwheel 14 is set on the L-shaped housing 3, the L-shaped housing 3 is provided with a bar-shaped groove 3a, and the long rod 13 and the No. 1 cylindrical sleeve 4 are fixed on the No. The fixed block 21 on the sleeve 4 and slidingly fitted with the bar-shaped groove 3a, and the long groove 3b fitted with the slider 12 is provided on the L-shaped housing 3 . In this way, by turning the rotating hand wheel 14, the screw thread of the rotating hand wheel 14 and the outer wall of the L-shaped housing 3 rotates and moves downward, the lower end of the rotating hand wheel 14 pushes the slider 12 to move down, and the slider 12 drives the long The top of the rod 13 moves downward, and at the same time drives the left end of the long rod 13 to rotate on the fixed block 21 and pushes the No. 1 cylindrical sleeve 4 to move to the left to provide feeding motion for the drill bit 6. This scheme is simple to operate, easy to use, and has a structural design Smart and efficient.

The long rod 13 is arranged on the L-shaped housing 3 in an obliquely upward straight line from left to right.

The clamping device includes a No. 1 splint 15 fixed on the right end of the base plate 1, a mounting base 16 fixed on the left end of the base plate 1, a push rod 18 mounted on the mounting base 16 and connected to the No. 2 splint 17 by threaded connection, The runner 19 connected to the left end of the push rod 18, the second splint 17 is provided with a T-shaped turning groove 17a, and the right end of the push rod 18 is connected with a disc 20 matching the T-shaped turning groove 17a. In this way, by turning the runner 19, the push rod 18 moves to the right, and the push rod 18 rotates in the T-shaped rotary groove 17a through the disc 20 during the rotation forward process, pushing the second splint 17 to connect the workpiece with a No. splint 15 is clamped together. The scheme has a simple structure and can realize fast clamping.

The using method of the present utility model is further elaborated below:

Fix the workpiece on the bottom plate 1 through the clamping device, start the motor 8, the motor 8 drives the No. 1 bevel gear 9 to rotate and meshes with the No. 2 bevel gear 10, and the No. 2 bevel gear 10 drives the spline shaft 7 and the No. 2 cylindrical sleeve 5 Rotate, so that the drill bit 6 performs rotary drilling.

Turn the rotary handwheel 14, the rotary handwheel 14 moves downward on the L-shaped housing 3, and forces the top of the long rod 13 to move downward, and the left end of the long rod 13 pushes the No. Provides a feed motion to the left to complete the machining of the hole.

After the drilling is completed, only need to rotate the rotary hand wheel 14 again to move upwards, so that the No. 1 cylinder sleeve 4 moves to the right and resets, thereby making things convenient for the workpiece to be taken out from the device.

The basic principles, main features and advantages of the present utility model have been shown and described above. Those skilled in the industry should understand that the utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions are only the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model There will also be various changes and improvements, and these changes and improvements all fall within the claimed utility model. The scope of protection required by the utility model is defined by the appended claims and their equivalents.

Claims (5)

1. a kind of workpiece medial surface drilling device, including bottom plate (1), be fixed on bottom plate (1) clamping device, be fixed on bottom plate (1) mounting post (2) on is connected with L-shaped shell (3) on the mounting post (2), it is characterised in that：The L-shaped shell (3) Left end is slidably fitted with No.1 cylindrical sleeve (4), and No. two cylindrical sleeves (5), No. two circles are equipped in the No.1 cylindrical sleeve (4) The left end of column sleeve (5) is equipped with drill bit (6) and right end is connected with the splined shaft (7) in L-shaped shell (3), the L-shaped shell It is fixed with the motor (8) being arranged perpendicular to bottom plate (1) in body (3), the motor (8) is connected with No.1 bevel gear (9), and described one Number bevel gear (9) is engaged with No. two bevel gears (10) on splined shaft (7), the No.1 cylindrical sleeve (4) and L-shaped shell (3) sctew feeder is equipped between；

The sctew feeder include vertical sliding be mounted on L-shaped shell (3) on sliding block (12), one end be hinged on No.1 circle On column sleeve (4) and stock (13) that the other end is hinged on sliding block (12), the mode being connected through a screw thread are sleeved on L-shaped shell (3) rotation hand wheel (14) on.

2. a kind of workpiece medial surface drilling device according to claim 1, it is characterised in that：The No.1 cylindrical sleeve (4) Bearing (11) is installed between No. two cylindrical sleeves (5).

3. a kind of workpiece medial surface drilling device according to claim 1, it is characterised in that：The stock (13) is in L-shaped In the setting of straight line obliquely from left to right on shell (3).

4. a kind of workpiece medial surface drilling device according to claim 1, it is characterised in that：The clamping device includes solid It is scheduled on the No.1 clamping plate (15) of bottom plate (1) right end, be fixed on bottom plate (1) left end mounting base (16), the side that is connected through a screw thread Formula is mounted in mounting base (16) and is connected with the push rod (18) of No. two clamping plates (17), is connected to the runner of push rod (18) left end (19)。

5. a kind of workpiece medial surface drilling device according to claim 4, it is characterised in that：On No. two clamping plates (17) T shapes turning slot (17a) is offered, the right end of the push rod (18) is connected with the disk (20) coordinated with T shapes turning slot (17a).