Pipe sleeve chamfering and tapping device

Abstract

The utility model discloses a pipe sleeve chamfering and tapping device which comprises a supporting frame, and an index plate rotating table, an opening and closing mechanism, a chamfering mechanism and a tapping mechanism are arranged on the supporting frame. A rotary table is arranged on the index plate rotary table, at least one group of clamping mechanisms for fixing pipe sleeves are uniformly distributed on the rotary table, and the opening and closing mechanism, the chamfering mechanism and the tapping mechanism are sequentially distributed around the rotary table in the anticlockwise direction. According to the pipe sleeve tapping device, continuous tapping operation on a pipe sleeve is achieved, the machining efficiency is effectively improved, and the production requirement is met; secondly, in the pipe sleeve clamping process, automatic opening and closing of the clamping mechanism are achieved, so that full automation of clamping and releasing of the pipe sleeve is achieved, and the feeding and discharging efficiency is improved; in addition, the clamping mechanism can meet the requirement for clamping pipe sleeves with different outer diameter specifications and dimensions, and the application range is widened.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of machining technology, and concretely relates to a punching and tapping device. BACKGROUND

[0002] In the process of machining, in order to meet specific installation requirements, the pipe sleeve often needs to be tapped in the pipe hole, so that complete assembly and function realization of the pipe sleeve are realized.

[0003] At present, for tapping in the pipe sleeve, the traditional processing mode is that the pipe sleeve is fixed on the machine tool workbench through a clamp, an inclined angle operation is carried out on the pipe sleeve opening by using a tool (generally a drill bit), the inclined angle tool is replaced by a tap, tapping is carried out by using the machine tool, the clamp is loosened to take out the pipe sleeve after tapping is completed, and the next group of pipe sleeves are processed; this processing mode cannot realize continuous processing of the pipe sleeve, the efficiency is low, and the production demand cannot be met. UTILITY MODEL CONTENTS

[0004] In order to solve the problems in the prior art, the utility model aims to provide a pipe sleeve reverse inner angle tapping device to realize pipe sleeve connection processing and improve processing efficiency.

[0005] To achieve the above technical purposes and effects, the utility model realizes the following technical scheme:

[0006] A pipe sleeve reverse inner angle tapping device, comprising a support frame, a protractor rotary workbench, an opening and closing mechanism, a chamfering mechanism and a tapping mechanism are arranged on the support frame; a turntable is arranged on the protractor rotary workbench; at least one set of clamping mechanisms for fixing the pipe sleeve are uniformly distributed on the turntable; the opening and closing mechanism, the chamfering mechanism and the tapping mechanism are distributed around the turntable in the counterclockwise direction.

[0007] Further, the clamping mechanism comprises a fixed plate, a base is arranged on the fixed plate, a clamping block that can slide on the base is arranged on the base, the clamping block realizes clamping operation by cooperating with the right side plate of the base; a lead screw is arranged between the right side plate of the base and the clamping block, a connecting plate is arranged on the lead screw outside the right side plate of the base, the connecting plate is limited on the lead screw by a nut, and the connecting plate is connected with the right side plate of the base by at least two sets of limiting bolts; a first spring is sleeved on the outer surface of the lead screw between the connecting plate and the right side plate of the base.

[0008] Further, the lead screw is a stepped shaft, which comprises a first stepped portion, a second stepped portion and a third stepped portion, the outer diameter of the first stepped portion and the third stepped portion is smaller than that of the second stepped portion, and the outer threads are provided on the surfaces of the first stepped portion and the third stepped portion respectively.

[0009] Further, an inner hexagonal hole is formed in the end surface of the third stepped portion.

[0010] Further, a second spring is sleeved on the outer surface of the limiting bolt between the connecting plate and the right side plate of the base.

[0011] Further, the clamping mechanism further comprises a pair of linear guides, the linear guides are arranged on the two sides of the clamping block, the sliding rails of the linear guides are fixedly connected with the fixed plate, and the sliding blocks of the linear guides are fixedly connected with the clamping block on the corresponding side.

[0012] Further, the clamping mechanism further comprises a limiting double-rod air cylinder, at least one set of limiting rods are arranged on the end plate at the front end of the limiting double-rod air cylinder, and the limiting rods pass through the left side plate of the base.

[0013] Further, the opening and closing mechanism comprises an opening and closing double-rod air cylinder, and an opening and closing plate is arranged on the end plate of the opening and closing double-rod air cylinder.

[0014] Further, the opening and closing plate is provided with an avoiding hole.

[0015] Further, the rotary disc is provided with a baffle.

[0016] The pipe sleeve is continuously tapped, the processing efficiency is effectively improved, and the production demand is met.

[0017] The above description is only a summary of the technical scheme of the utility model, in order to more clearly understand the technical means of the utility model, and can be implemented according to the content of the specification, the following is the preferred embodiment of the utility model and the detailed description of the drawings as follows. The specific implementation of the utility model is given in detail by the following examples and their drawings. BRIEF DESCRIPTION OF DRAWINGS

[0018] The accompanying drawings, which are included to provide a further understanding of the present application and are incorporated in and constitute a part of this application, illustrate embodiments of the present application and serve to explain the present application. In the drawings:

[0019] Figure 1 It is the whole structure schematic diagram of the present application device;

[0020] Figure 2 It is the present application schematic diagram without baffle;

[0021] Figure 3 It is the present application opening and closing mechanism and clamping mechanism connection relationship schematic diagram;

[0022] Figure 4 It is the present application clamping mechanism plan view;

[0023] Figure 5 It is the present application Figure 4 A-A section view in the present application.

[0024] Figure label explanation: 1, support frame;2, index plate rotary table;3, opening and closing mechanism;4, chamfering mechanism;5, tapping mechanism;6, turntable;7, clamping mechanism;8, baffle;31, opening and closing double rod cylinder;32, opening and closing plate;321, avoiding hole;71, fixed plate;72, base;73, clamping block;74, screw;75, connecting plate;76, nut;77, limit bolt;78, first spring;79, second spring;80, linear guide;81, limit double rod cylinder;82, limit rod;741, first step part;742, second step part;743, third step part. DETAILED DESCRIPTION

[0025] The present application will be described in detail below with reference to the drawings and embodiments.

[0026] It should be noted that all directional directions (such as up, down, left, right, front, back, upper end, lower end, top, bottom, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain specific posture (as shown in the drawings), if the specific posture changes, the directional directions also change accordingly.

[0027] Reference Figures 1-2As shown in the figure, a pipe sleeve chamfering and tapping device comprises a support frame 1, a protractor rotary workbench 2, an opening and closing mechanism 3, a chamfering mechanism 4 and a tapping mechanism 5 are arranged on the support frame 1; a turntable 6 is arranged on the protractor rotary workbench 2, four groups of clamping mechanisms 7 for fixing the pipe sleeve are uniformly distributed on the turntable 6, the opening and closing mechanism 3, the chamfering mechanism 4 and the tapping mechanism 5 are sequentially distributed around the turntable 6 in the counterclockwise direction and rotate with the turntable 6, the clamping mechanisms 7 will be sequentially conveyed to the operating positions of the opening and closing mechanism 3, the chamfering mechanism 4 and the tapping mechanism 5; during operation, the opening and closing of the clamping mechanisms 7 is controlled by the opening and closing mechanism 3, so as to realize the clamping or releasing of the pipe sleeve; the chamfering mechanism 4 is used to chamfer the pipe sleeve clamped on the clamping mechanism 7; and the tapping mechanism 5 is used to tap the pipe sleeve clamped on the clamping mechanism 7; it should be noted that the number of groups of the clamping mechanisms 7 is only an implementation manner, and does not limit the scope of the application; when arranged, it can be arranged according to actual needs, and in this embodiment, since four groups of clamping mechanisms 7 are arranged, the protractor rotary workbench 2 drives the turntable 6 to rotate 90 degrees each time.

[0028] Further, referring to Figures 3-5 As shown in the figure, in this embodiment, the clamping mechanism 7 comprises a fixed plate 71, the fixed plate 71 is fixed on the turntable 6; a base 72 is arranged on the fixed plate 71, a clamping block 73 which can slide on the base 72 is arranged on the base 72, the clamping block 73 is clamped by cooperating with the right side plate of the base 72 to realize clamping operation; a lead screw 74 is arranged between the right side plate of the base 72 and the clamping block 73, see Figure 5As shown, the screw rod 74 is a stepped shaft, which includes a first stepped portion 741, a second stepped portion 742 and a third stepped portion 743, the outer diameter of the first stepped portion 741 and the third stepped portion 743 is smaller than that of the second stepped portion 742, and the outer threads are provided on the surfaces of the first stepped portion 741 and the third stepped portion 743 respectively, when connected, the first stepped portion 741 passes through the clamping block 73 and is threadedly connected with the clamping block 73, the second stepped portion 742 is arranged in the right side plate of the base 72 and can rotate and slide in the right side plate of the base 72, at this time, the third stepped portion 743 is located outside the right side plate of the base 72, and a connecting plate 75 is arranged on the third stepped portion 743, the connecting plate 75 is limited on the third stepped portion 743 through a nut 76, at the same time, the connecting plate 75 is connected with the right side plate of the base 72 through two groups of limiting bolts 77, and the connecting plate 75 can slide on the limiting bolts 77; a first spring 78 is sleeved on the outer surface of the second stepped portion 742 between the connecting plate 75 and the right side plate of the base 72, and a second spring 79 is sleeved on the limiting bolt 77 between the connecting plate 75 and the right side plate of the base 72; wherein, the first spring 78 and the second spring 79 have a tendency to drive the connecting plate 75 to move away from the right side plate of the base 72 under the action of no external force; and the number of groups of the limiting bolts 77 is only an implementation manner, which does not limit the scope of the present application, and can be set according to actual needs when setting.

[0029] In addition, before clamping operation, it is necessary to ensure that the nut 76 is in a tightened state, so that the stepped surface between the second stepped portion 742 and the third stepped portion 743 abuts against the connecting plate 75 and is locked between the nut 76 and the stepped surface; during clamping operation, the opening and closing mechanism 3 drives the connecting plate 75 to displace towards the right side plate of the base 72, at this time, the connecting plate 75 drives the screw rod 74 to move synchronously, so that the clamping block 73 is driven by the screw rod 7 to move away from the right side plate of the base 72, the distance between the clamping block 73 and the right side plate of the base 72 is increased, the pipe sleeve being clamped is released, or preparation for clamping is made; when the pipe sleeve to be machined is loaded, the opening and closing mechanism 3 releases the driving of the connecting plate 75 and resets, at this time, the connecting plate 75 moves away from the right side plate of the base 72 under the reaction force of the first spring 78 and the second spring 79, and drives the screw rod 74 to move synchronously through the nut 76, so that the clamping block 73 is driven by the screw rod 7 to move towards the right side plate of the base 72, and the pipe sleeve is clamped.

[0030] When different outer diameter specifications of the sleeve need to be clamped, first loosen the nut 76, at this time, the connecting plate 75 will not move with the nut 76 under the limitation of the limiting bolt 77, therefore, with the loosening of the nut 76, the screw rod 74 can move in the connecting plate 75; then rotate the screw rod 74 to drive the clamping block 73 to move towards or away from the right side plate of the base 72, and after adjusting to the position, tighten the nut 76 again; and in the embodiment, in order to facilitate the rotation of the screw rod 74, an inner hexagon is formed on the end face of the third stepped portion 743.

[0031] Further, referring to Figures 3-4 In the embodiment, in order to ensure that the clamping block 73 can remain stable during movement and avoid shaking or deviation, the clamping mechanism 7 further comprises a pair of linear guides 80, and the slide rails of the pair of linear guides 80 are fixedly connected with the fixed plate 71, and the slide blocks of the pair of linear guides 80 are fixedly connected with the clamping block 73 on the corresponding side.

[0032] Further, referring to Figures 3-5 In the embodiment, the clamping mechanism 7 further comprises a limiting double-rod air cylinder 81, and a plurality of limiting rods 82 are arranged on the end plate at the front end of the limiting double-rod air cylinder 81, and the limiting rods 82 pass through the left side plate of the base 72; when the sleeve is clamped between the clamping block 73 and the right side plate of the base 72, the limiting double-rod air cylinder 81 drives the limiting rods 82 to abut against the clamping block 73, so as to avoid loosening of the sleeve due to movement of the clamping block 73 during the process of beveling or tapping of the sleeve, thereby avoiding problems such as displacement or falling off of the sleeve and damage of the tool.

[0033] Further, referring to Figure 3 In the embodiment, the opening and closing mechanism 3 comprises an opening and closing double-rod air cylinder 31, the opening and closing double-rod air cylinder 31 is fixed on the turntable 6 through a corresponding support seat, an opening and closing plate 32 is arranged on the end plate of the opening and closing double-rod air cylinder 31, and an avoiding hole 321 is formed in the opening and closing plate 32; when the opening and closing double-rod air cylinder 31 drives the opening and closing plate 32 to push the connecting plate 75, the nut 76, the third stepped portion 743 and the limiting bolt 77 are avoided through the avoiding hole 321, so that the opening and closing plate 32 directly abuts against the connecting plate 75.

[0034] Further, referring to Figure 1As shown, in the embodiment, the turntable 6 is provided with a baffle 8; the main role of the baffle 8 is to block the debris in the inverted bevel or tapping process from being scattered everywhere, facilitating cleaning, i.e. collection.

[0035] The working principle of the utility model is as follows:

[0036] Before operation, the initial position of the clamping block 73 is adjusted according to the outer diameter specification of the pipe sleeve to be processed, at this time, the spacing between the clamping block 73 and the right side plate of the base 72 is less than the outer diameter of the pipe sleeve, and the operation center position of the chamfering mechanism 4 and the tapping mechanism 5 is adjusted at the same time to meet the problem of center offset of the pipe sleeve due to the change of the outer diameter; during operation, the device is started, first, the opening and closing mechanism 3 drives the clamping block 73 to move away from the right side plate of the base 72 by pushing the connecting plate 75, so that the spacing between the clamping block 73 and the right side plate of the base 72 is greater than the outer diameter of the pipe sleeve; after the operator or the mechanical hand places the pipe sleeve between the clamping block 73 and the right side plate of the base 72, the opening and closing mechanism 3 is reset to release the pushing of the connecting plate 75, at this time, the connecting plate 75 moves away from the right side plate of the base 72 under the reaction force of the first spring 78 and the second spring 79, drives the clamping block 73 to move towards the right side plate of the base 72 and clamps the pipe sleeve, at the same time, the limiting double-rod cylinder 81 drives the limiting rod 82 to press against the clamping block 73 to clamp the pipe sleeve in the clamping mechanism 7; then the indexing disc rotary table 2 drives the turntable 6 to rotate, and the clamping mechanism 7 with the pipe sleeve is sequentially conveyed to the chamfering mechanism 4 and the tapping mechanism 5 to perform chamfering and tapping.

[0037] The above only describes the preferred embodiments of the utility model and is not used to limit the utility model. For those skilled in the art, the utility model can be changed and varied in various ways. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A tapping device for beveling the inner corner of a pipe sleeve, characterized in that: It includes a support frame (1), on which a rotary table (2), an opening and closing mechanism (3), a chamfering mechanism (4) and a tapping mechanism (5) are provided; a turntable (6) is provided on the rotary table (2), and at least one set of clamping mechanisms (7) for fixing the tube sleeve is evenly distributed on the turntable (6); the opening and closing mechanism (3), the chamfering mechanism (4) and the tapping mechanism (5) are distributed in a counterclockwise direction around the turntable (6); The clamping mechanism (7) includes a fixed plate (71), a base (72) is provided on the fixed plate (71), and a clamping block (73) that can slide on the base (72) is provided on the base (72). The clamping block (73) cooperates with the right side plate of the base (72) to realize the clamping operation. A lead screw (74) is passed between the right side plate of the base (72) and the clamping block (73). A connecting plate (75) is provided on the lead screw (74) located outside the right side plate of the base (72). The connecting plate (75) is restricted to the lead screw (74) by a nut (76). The connecting plate (75) is connected to the right side plate of the base (72) by at least two sets of limiting bolts (77). A first spring (78) is sleeved on the outer surface of the lead screw (74) located between the connecting plate (75) and the right side plate of the base (72).

2. The pipe sleeve internal angle tapping device according to claim 1, characterized in that: The lead screw (74) is a stepped shaft, which includes a first stepped portion (741), a second stepped portion (742) and a third stepped portion (743). The outer diameters of the first stepped portion (741) and the third stepped portion (743) are smaller than the outer diameter of the second stepped portion (742), and external threads are respectively provided on the surfaces of the first stepped portion (741) and the third stepped portion (743).

3. The pipe sleeve internal angle tapping device according to claim 2, characterized in that: The end face of the third step (743) is provided with an internal hexagon.

4. The pipe sleeve internal angle tapping device according to claim 1, characterized in that: A second spring (79) is respectively fitted on the outer surface of the limiting bolt (77) located between the connecting plate (75) and the right side plate of the base (72).

5. The pipe sleeve internal angle tapping device according to claim 1, characterized in that: The clamping mechanism (7) also includes a pair of linear guide rails (80), which are respectively disposed on both sides of the clamping block (73). The slide rails of the pair of linear guide rails (80) are fixedly connected to the fixing plate (71), and the sliders of the pair of linear guide rails (80) are respectively fixedly connected to the clamping block (73) on the corresponding side.

6. The pipe sleeve internal angle tapping device according to claim 1, characterized in that: The clamping mechanism (7) also includes a limiting double rod cylinder (81). At least one set of limiting rods (82) are provided on the end plate at the front end of the limiting double rod cylinder (81). The limiting rods (82) pass through the left side plate of the base (72).

7. The pipe sleeve internal angle tapping device according to claim 1, characterized in that: The opening and closing mechanism (3) includes an opening and closing double rod cylinder (31), and an opening and closing plate (32) is provided on the end plate of the opening and closing double rod cylinder (31).

8. The pipe sleeve internal angle tapping device according to claim 7, characterized in that: The opening and closing plate (32) is provided with a clearance hole (321).

9. The pipe sleeve internal angle tapping device according to claim 1, characterized in that: A baffle (8) is provided on the turntable (6).

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