CN201350568Y

CN201350568Y - Eccentric copper sheathing groove cutting device

Info

Publication number: CN201350568Y
Application number: CNU2009201138672U
Authority: CN
Inventors: 叶青
Original assignee: NINGBO MINGXIN CHEMICAL MACHINERY CO Ltd
Current assignee: NINGBO MINGXIN CHEMICAL MACHINERY CO Ltd
Priority date: 2009-02-18
Filing date: 2009-02-18
Publication date: 2009-11-25
Anticipated expiration: 2019-02-18

Abstract

The utility model relates to an eccentric copper sheathing groove cutting device which comprises a taper shank pole connected with a drill jig, wherein an eccentric copper sheathing is embedded in a cavity at the lower end of the taper shank pole; the cavity of the eccentric copper sheathing is provided with a cylindrical helical compression spring, the lower end of which is butted with a cutter spindle; the upper part of the cutter spindle is positioned in the cavity of the eccentric copper sheathing; the taper shank pole is provided with a sliding pin groove and an outer guide pin hole; the eccentric copper sheathing is provided with an inner guide pin hole; the cutter spindle is provided with an upper convex body, a spiral groove, a middle convex ring and a lower convex body; the outer guide pin hole of the taper shank pole and the inner guide pin hole of the eccentric copper sheathing are connected with a guide pin which can slide in the spiral groove of the cutter spindle in a penetrating manner; the lower convex body of the cutter spindle is sheathed with a tapered roller bearing; and the lower end of the taper shank pole is assembled with an eccentric sliding bush. The eccentric copper sheathing groove cutting device is characterized in that: firstly, the eccentric copper sheathing realizes radial cutting, thus leading the cutting precision of slots to be high and the verticality of the upper section and the lower section along the axial direction to be good; secondly, the cutting depth of slots is easy to be controlled through the amount of cutting which has linear relation with the slot depth; and thirdly, the eccentric copper sheathing groove cutting device has simple and reliable structure and easy maintenance.

Description

Eccentric copper sheathing hook groove device

Technical field

The utility model relates to the chemical industry equipment double tube plate heat exchanger and makes the field, especially relates to eccentric copper sheathing hook groove device.

Background technology

In the chemical industry equipment double tube plate heat exchanger is made, in order to guarantee to restrain the sealing with tube sheet, usually will be at tubesheet holes inner surface grooving, make tube bank produce certain amount of plastic deformation at the grooving position by tube expander, thereby reach the sealing of tube bank and tube sheet, stop medium to enter the another one pressure chamber from a pressure chamber.The processing of tube sheet grooving is difficult to realize on existing lathe, because lathe can only provide gyration and axially feed campaign, therefore radially feed campaign can not be provided, will finish a large amount of grooving operations, just must adopt a kind ofly can change into the radially device of feed campaign to axially-movable.

Summary of the invention

Technical problem to be solved in the utility model is the present situation at prior art, and a kind of precision height, simple and reliable for structure, eccentric copper sheathing hook groove device for ease of maintenaince are provided.

The utility model solves the problems of the technologies described above the technical scheme that is adopted: eccentric copper sheathing hook groove device, comprise the taper shank pole that is connected with drill jig, wherein: the lower end cavity of taper shank pole is nested with eccentric copper sheathing, the eccentric copper sheathing inner chamber cylindroid helical-coil compression spring of packing into, and, cylindroid helical-coil compression spring lower end butt has top to be arranged in the cutter shaft of eccentric copper sheathing inner chamber, the taper shank pole is shaped on sliding pin groove and outer pin-guide hole, eccentric copper sheathing is shaped on interior pin-guide hole, cutter shaft is shaped on convex body, helicla flute, the convexity circle, lower convex platform, pin-guide hole runs through that be connected with can be at the pilot pin of cutter shaft helicla flute slip in the outer pin-guide hole of taper shank pole and the eccentric copper sheathing, the cutter shaft lower convex platform is set with taper roll bearing, and the lower end of taper shank pole is fitted with eccentric sliding sleeve.

Further technical measures also have:

Above-mentioned eccentric sliding sleeve is shaped on chute hole, step-like cavity, external screw thread; Wherein, the chute hole of eccentric sliding sleeve is penetrated with and can be connected to the sliding pin that slides on the sliding pin groove, the adaptive taper roll bearing in step-like cavity middle part, the eccentric copper sheathing bottom face of step-like cavity upper table surface butt.

Above-mentioned eccentric sliding sleeve external screw thread top is threaded and is useful on the positioning cap of location, and the external screw thread lower thread is connected with the adjusting sliding sleeve, and the eccentric copper sheathing of cutter shaft convexity circle butt lower surface.

The cutter shaft lower end that is positioned at cavity under the above-mentioned adjusting sliding sleeve is equipped with bearing, guide and back-up ring, and is fixed with securing member at the cutter shaft lower end.

Compared with prior art, the utility model adopts the lower end cavity of taper shank pole to be nested with eccentric copper sheathing, the eccentric copper sheathing inner chamber cylindroid helical-coil compression spring of packing into, and, cylindroid helical-coil compression spring lower end butt has top to be arranged in the cutter shaft of eccentric copper sheathing inner chamber, the taper shank pole is shaped on sliding pin groove and outer pin-guide hole, eccentric copper sheathing is shaped on interior pin-guide hole, cutter shaft is shaped on convex body, helicla flute, the convexity circle, lower convex platform, pin-guide hole runs through that be connected with can be at the pilot pin of cutter shaft helicla flute slip in the outer pin-guide hole of taper shank pole and the eccentric copper sheathing, the cutter shaft lower convex platform is set with taper roll bearing, and the lower end of taper shank pole is fitted with eccentric sliding sleeve.Have substantial characteristics: the one, eccentric copper sheathing has been realized the radially groove precision height of the feasible cutting of feed, and the tangent plane up and down of groove is good in axial perpendicularity, and bronze castability is good, and wear-resisting and chemical property is stablized; The 2nd, easily by depth of cut control, there are linear dependence in the depth of cut and groove depth to the groove depth of cutting; The 3rd, simple and reliable for structure, for ease of maintenaince.

Description of drawings

Fig. 1 is the utility model embodiment overall structure partial schematic sectional view;

Fig. 2 is Fig. 1 middle part subassembly decomposing schematic representation.

The specific embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

Fig. 1 is to shown in Figure 2, eccentric copper sheathing hook groove device by taper shank pole 1, eccentric copper sheathing 2, cylindroid helical-coil compression spring 3, cutter shaft 4, pilot pin 5, taper roll bearing 6, eccentric sliding sleeve 7, regulate standard components such as main parts size such as sliding sleeve 8, positioning cap 9, sliding pin 10 and back-up ring, screw, cutter and form.

Taper shank pole 1 has the upper end 1d that is connected with drill jig, the lower end cavity 1c of taper shank pole 1 is nested with eccentric copper sheathing 2, the eccentric copper sheathing 2 inner chamber 2b cylindroid helical-coil compression spring 3 of packing into, and, cylindroid helical-coil compression spring 3 lower end butts have top to be arranged in the cutter shaft 4 of eccentric copper sheathing 2 inner chambers, taper shank pole 1 is shaped on sliding pin groove 1a and outer pin-guide hole 1b, pin-guide hole 2a in eccentric copper sheathing 2 is shaped on, cutter shaft 4 is shaped on convex body 4a, helicla flute 4b, convexity circle 4c, lower convex platform 4d, pin-guide hole 2a run through and are connected with the pilot pin 5 that can slide at described cutter shaft 4 helicla flute 4b in described taper shank pole 1 outer pin-guide hole 1b and the eccentric copper sheathing 2, described cutter shaft 4 lower convex platform 4d are set with taper roll bearing 6, the lower end of described taper shank pole 1 is fitted with eccentric sliding sleeve 7, and described eccentric sliding sleeve 7 is shaped on chute hole 7a, step-like cavity 7b, external screw thread 7c; Wherein, the chute hole 7a of eccentric sliding sleeve 7 is penetrated with and can be connected to the sliding pin 10 that described sliding pin groove 1a goes up slip, the adaptive described taper roll bearing 6 in step-like cavity 7b middle part, described eccentric copper sheathing 2 bottom faces of step-like cavity 7b upper table surface butt, the positioning cap 9 that external screw thread 7c top is threaded and is useful on the location, external screw thread 7c lower thread is connected with regulates sliding sleeve 8, and the described eccentric copper sheathing of described cutter shaft 4 convexity circle 4c butts 2 lower surfaces.Be positioned at cutter shaft 4 lower ends of regulating 8 times cavitys of sliding sleeve bearing, guide and back-up ring are installed, and be fixed with securing member at cutter shaft 4 lower ends.

The utility model axially-movable is independently gyration of cutter shaft 4 by the conversion of motion of helicla flute 4b on pilot pin 5 and the cutter shaft 4, and cutter shaft 4 and whole rotating off-centre have realized the radially motion of feed.Spring on the cutter shaft 4 resets device after cutting finishes, and prepares cutting next time.

The utility model and same device, compared following advantage as lever-type hook groove device:

1, eccentric copper sheathing 2 has been realized the radially groove precision height of the feasible cutting of feed, and the tangent plane up and down of groove is good in axial perpendicularity, and bronze castability is good, and wear-resisting and chemical property is stablized;

2, easily by depth of cut control, there are linear dependence in the depth of cut and groove depth to Qie Ge groove depth;

3, simple and reliable for structure, for ease of maintenaince.

Though the utility model illustrates and describes by the reference preferred embodiment,, those skilled in the art should understand, and in the scope of claims, can do the various variation on form and the details.

Claims

1, eccentric copper sheathing hook groove device, comprise the taper shank pole (1) that is connected with drill jig, it is characterized in that: the lower end cavity (1c) of described taper shank pole (1) is nested with eccentric copper sheathing (2), eccentric copper sheathing (2) inner chamber (2b) cylindroid helical-coil compression spring (3) of packing into, and, cylindroid helical-coil compression spring (3) lower end butt has top to be arranged in the cutter shaft (4) of eccentric copper sheathing (2) inner chamber, taper shank pole (1) is shaped on sliding pin groove (1a) and outer pin-guide hole (1b), eccentric copper sheathing (2) is shaped on interior pin-guide hole (2a), cutter shaft (4) is shaped on convex body (4a), helicla flute (4b), convexity circle (4c), lower convex platform (4d), the outer pin-guide hole of described taper shank pole (1) (1b) and interior the pin-guide hole of eccentric copper sheathing (2) (2a) run through that be connected with can be at the pilot pin (5) of described cutter shaft (4) helicla flute (4b) slip, described cutter shaft (4) lower convex platform (4d) is set with taper roll bearing (6), and the lower end of described taper shank pole (1) is fitted with eccentric sliding sleeve (7).

2, eccentric copper sheathing hook groove device according to claim 1, it is characterized in that: described eccentric sliding sleeve (7) is shaped on chute hole (7a), step-like cavity (7b), external screw thread (7c); Wherein, the chute hole (7a) of eccentric sliding sleeve (7) is penetrated with and can be connected to the sliding pin (10) that described sliding pin groove (1a) is gone up slip, step-like cavity (7b) middle part adaptive described taper roll bearing (6), step-like cavity (7b) the upper table surface described eccentric copper sheathing of butt (2) bottom face.

3, eccentric copper sheathing hook groove device according to claim 2, it is characterized in that: the positioning cap (9) that described eccentric sliding sleeve (7) external screw thread (7c) top is threaded and is useful on the location, external screw thread (7c) lower thread is connected with regulates sliding sleeve (8), and the described eccentric copper sheathing of described cutter shaft (4) convexity circle (4c) butt (2) lower surface.

4, eccentric copper sheathing hook groove device according to claim 3, it is characterized in that: cutter shaft (4) lower end that is positioned at cavity under the described adjusting sliding sleeve (8) is equipped with bearing, guide and back-up ring, and is fixed with securing member at cutter shaft (4) lower end.