CN213672939U - Machine tool fixture for steering gear shell - Google Patents

Abstract

A machine tool fixture for a diverter housing, comprising: a horizontally disposed floor; positioning the core column; two first pressing mechanisms which are correspondingly arranged at the front side and the rear side of the positioning core column and are used for pressing downwards; two second pressing mechanisms which are correspondingly arranged at the front side and the rear side of the positioning core column and are used for pressing downwards; the top ends of the supporting blocks form positioning surfaces; the upper ends of two of the supporting blocks at diagonal positions are also fixedly provided with vertical positioning pins; the lower end of the baffle column is vertically fixed at the upper end of the bottom plate; a first positioning block and a second positioning block; and a third pressing mechanism for pressing backwards; wherein, the left and right ends of the positioning core column towards the two second pressing mechanisms contract inwards to form a first abdicating surface which extends vertically and forwards and backwards, and the rear ends of the two supporting blocks on the rear side contract inwards to form a second abdicating surface which extends vertically and leftwards and rightwards.

Description

Machine tool fixture for steering gear shell

Technical Field

The utility model relates to an auto-parts processing technology field, concretely relates to machine tool fixture for steering gear casing.

Background

The steering gear assembly is an important component of an automobile steering system and is used for transmitting and converting torque on a steering wheel, so that the steering function of an automobile is realized. The steering gear shell is one of important components in a mechanical steering gear, is used as a carrier of all parts of the steering gear, plays roles of connecting with the whole automobile, fixing and protecting parts such as a gear and a rack, limiting the stroke of the rack and the like, and supports the power transmission of the whole steering system. The precision level of the shell directly influences whether the automobile can stably steer.

The diverter housing 100 is generally configured as shown in fig. 1-2. The steering gear housing 100 includes a main cylinder 01 disposed in a longitudinal direction and a bearing cylinder 02 disposed vertically. A main cylinder hole 010 is provided in the main cylinder 01. A bearing hole 020 is formed in the bearing cylinder 02. The main cylinder hole 010 vertically penetrates the bearing hole 020. Both ends of the bearing cylinder 02 are relatively reduced in diameter to form a bearing cylinder outer step surface 02 a. The proximal end portions of both ends of the inner wall of the bearing cylinder 02 are provided with a seal groove and a clamp spring groove.

A first fitting hole 01a is provided on one end surface of the master cylinder 01. The other end face of the master cylinder 01 is provided with an end cover 06. The end cover 06 is provided with a first threaded hole 06a in the center thereof. The end cap 06 is additionally provided with a second threaded hole 06b, wherein the first threaded hole 06a is a blind hole. The second screw hole 06b is a through hole. The end cap 06 is integrally connected with a first conduit 04b and a second conduit 05b which extend radially and are open at both ends. One end of the first guide pipe 04b on the radially inner side communicates perpendicularly to the first screw hole 06 a. One end of the second conduit 05b on the radially inner side communicates with the cylinder hole 010.

The main cylinder 01 and the bearing cylinder 02 are fixed and communicated with the middle part of the inner side wall of the main cylinder 01. A first longitudinal pipe 04 and a second longitudinal pipe 05 extending in the longitudinal direction are integrally connected to a side wall of the master cylinder 01 on the side away from the bearing hole 02. A first deep hole 04a is arranged in the first longitudinal pipe 04. A second deep hole 05a is formed in the second longitudinal tube 05. The first longitudinal pipe 04 is vertically connected to the first guide pipe 04 b. The second longitudinal pipe 05 is vertically connected to the second guide pipe 05 b.

The edge of the end of the second longitudinal pipe 05 far away from the main cylinder 01 protrudes towards one side in the transverse direction to form three mounting column seats 03. The longitudinal sides of the bearing cylinder 02 respectively protrude towards the same side to form another mounting post base 03. The upper end faces of the mounting column bases 03 are flush with each other to form a mounting face. The third screw hole 03a is seted up to the erection column seat 03 upper end. The third threaded hole 03a is a blind hole.

A marking plane 07 is formed on one end of the master cylinder 01 corresponding to the lateral direction of the mounting post base 03. A longitudinally extending oil hole 08 is formed in a side wall of the bearing cylinder 02 on the side remote from the main cylinder 01. One end of the oil hole 08 penetrates through the bearing hole 020 in the tangential direction.

The processing procedure of processing the blank material into the steering gear shell comprises the following steps:

OP 10: milling a mounting surface by using a vertical machining center, drilling and reaming five bottom holes on the mounting surface, drilling three of the bottom holes into third threaded holes 03a, and only precisely reaming the other two bottom holes without tapping (for subsequent positioning);

OP 20: roughly machining a bearing hole 020 and an end face thereof, a sealing groove and a clamp spring groove by using a vertical machining center and a fourth shaft turntable; milling a mark plane 07; milling the end surfaces of the first guide pipe 04b and the second guide pipe 05b, and drilling an inner hole and tapping a taper pipe thread;

OP 30: roughly machining the main cylinder hole 010 and the end face thereof by using a vertical machining center and a fourth shaft turntable;

OP 40: finish-milling the end face of the main cylinder bore 010 by using a horizontal machining center; finely boring a main cylinder hole 010 and a bearing hole 020; finely milling a sealing groove and a clamp spring groove; tapping drill threads in the six first assembling holes 1 a; drilling inner holes of a first guide pipe 04b and a second guide pipe 05 b; drilling a first threaded hole 06a and a second threaded hole 06 b;

OP 50: drilling an inner hole of the first longitudinal pipe 04 by using a numerical control lathe and a deep hole drill;

OP 60: drilling an inner hole of the second longitudinal pipe 05 by using a numerical control lathe and a deep hole drill;

OP 70: honing the main cylinder bore 010 with a honing machine;

OP 80: rolling the main cylinder hole 010 by using a vertical drilling machine;

OP 90: tapping the remaining two third threaded holes 03a on the other two bottom holes by using a tapping machine;

the steering gear housing is usually positioned by a machine tool fixture when it is machined, and it is necessary to facilitate machining, and a suitable machine tool fixture is required for each of the above steps.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a machine tool fixture for steering gear casing, make it can satisfy the location needs in the above-mentioned OP30 process.

The utility model provides a scheme is: a machine tool fixture for a diverter housing, comprising:

a horizontally disposed floor;

the lower end of the positioning core column is vertically fixed on the bottom plate;

two first pressing mechanisms which are correspondingly arranged at the front side and the rear side of the positioning core column and are used for pressing downwards;

two second pressing mechanisms which are correspondingly arranged at the front side and the rear side of the positioning core column and are used for pressing downwards, wherein the second pressing mechanisms and the first pressing mechanisms are positioned at the left side and the right side of the positioning core column;

the four supporting blocks are fixed at the upper end of the bottom plate and correspondingly aligned to the positions right below the first pressing mechanism and the second pressing mechanism, and positioning surfaces are formed at the top ends of the supporting blocks; vertical positioning pins are further fixed at the upper ends of two of the supporting blocks in diagonal positions;

the lower end of the retaining column is vertically fixed at the upper end of the bottom plate, the retaining column is positioned between the four supporting blocks in the left-right direction, and the retaining column is positioned at the front side of the four supporting blocks in the front-back direction;

the first positioning block and the second positioning block are fixed on the bottom plate and are positioned on the left side, the right side and the opposite side of the four supporting blocks, which are far away from the first pressing mechanism, the first positioning block is positioned in the front-back middle of the two second pressing mechanisms, and the second positioning block is positioned on the front side of the two second pressing mechanisms;

and a third pressing mechanism for pressing backwards;

the positioning core column faces towards two, the left end and the right end of the second pressing mechanism contract inwards to form a first abdicating surface which extends vertically and forwards and backwards, and the rear end of the supporting block contracts inwards to form a second abdicating surface which extends vertically and leftwards and rightwards.

Preferably, the third pressing mechanism comprises a second single-acting cylinder, a second hinged support, a third pressing arm and a second connecting rod, the second hinged support is fixed at the upper end of the bottom plate, a cylinder body of the second single-acting cylinder is fixed at the lower end of the bottom plate, and the third pressing arm vertically penetrates through a through hole correspondingly formed in the bottom plate; a piston rod of the second single-acting cylinder extends forwards and is hinged to the lower end of the third pressing arm, and the rear end of the second connecting rod is hinged to the second hinged support; the front end of the second connecting rod is hinged to the middle of the third pressing arm.

Preferably, the first pressing mechanism includes: a seat plate horizontally fixed on the upper end of the bottom plate; the cylinder body is fixed on the single-acting cylinder on the bottom plate; the piston rod of the single-acting cylinder is upwards movably arranged on the bottom plate and the seat plate in a penetrating way and then is hinged with one end of the pressure arm; the middle part of the pressure arm is hinged to the hinged support through the connecting rod, and the supporting block is arranged right below the other end of the pressure arm.

Preferably, the second pressing mechanism comprises a heightening seat, a hydraulic cylinder, a second pressing arm and a pressing block, the lower end of a cylinder body of the hydraulic cylinder is fixed at the upper end of the bottom plate through the heightening seat, a piston rod of the hydraulic cylinder extends upwards and inclines towards one side of the positioning core column, one end of the second pressing arm is vertically fixed on the piston rod of the hydraulic cylinder, the pressing block is rotatably arranged at the lower side of the other end of the second pressing arm through a pin shaft extending forwards and backwards, and the lower end of the pressing block is inwards recessed to form an arc-shaped positioning concave surface extending forwards and backwards; the second pressure arm is recessed to form a stop surface for preventing the second pressure arm from over-rotating.

Preferably, the upper end of the positioning core column is an arc surface.

The utility model discloses a machine tool fixture it fixes a position the dead eye through the location stem, fixes a position the bottom hole through the locating pin on two supporting shoes, compresses tightly from both sides respectively through two first hold-down mechanism and two second hold-down mechanism simultaneously, and third hold-down mechanism compresses tightly from end cover one side, sets up first face of stepping down, second face of stepping down simultaneously, can conveniently carry out rough milling to main cylinder hole and terminal surface.

Drawings

FIG. 1 is an elevation view of a diverter housing to be machined;

FIG. 2 is an elevation view from another perspective of the diverter housing to be machined;

fig. 3 is an elevation view of the machine tool fixture, the diverter housing to be machined, and the fourth axis turret of the present invention;

FIG. 4 is an elevation view of the machine tool fixture and diverter housing to be machined of the present invention;

fig. 5 is an elevation view of the machine tool fixture and the steering gear housing to be machined from another perspective of the present invention;

FIG. 6 is a rear view of the machine tool fixture and the diverter housing to be machined of the present invention;

fig. 7 is an elevation view of the machine tool fixture of the present invention;

fig. 8 is a top view of the machine tool holder of the present invention;

fig. 9 is a side view of a first hold-down mechanism of the present invention;

fig. 10 is an elevation view of a third hold-down mechanism of the present invention;

description of reference numerals: 01. a master cylinder; 010. a main cylinder bore; 01a, a first assembly hole; 02. a bearing cylinder; 020. a bearing bore; 02a, bearing cylinder outer step surfaces; 03. mounting a column base; 03a and a third threaded hole; 04. a first longitudinal tube; 04a, a first deep hole; 04b, a first conduit; 05. a second longitudinal tube; 05a, a second deep hole; 05b, a second conduit; 06. an end cap; 06a, a first threaded hole; 06b, a second threaded hole; 07. marking a plane; 08. an oil hole; 100. a diverter housing; 01. a master cylinder; 010. a main cylinder bore; 01a, a first assembly hole; 02. a bearing cylinder; 020. a bearing bore; 02a, bearing cylinder outer step surfaces; 03. mounting a column base; 03a and a third threaded hole; 04. a first longitudinal tube; 04a, a first deep hole; 04b, a first conduit; 05. a second longitudinal tube; 05a, a second deep hole; 05b, a second conduit; 06. an end cap; 06a, a first threaded hole; 06b, a second threaded hole; 07. marking a plane; 08. an oil hole; 100. a diverter housing; 1. positioning the core column; 1a, a first abdicating surface; 2. a support block; 2a, a second abdicating surface; 3. positioning pins; 4. a first hold-down mechanism; 41. a seat plate; 42. hinging seat; 43. pressing the arm; 44. a connecting rod; 45. a single acting cylinder; 5. a second hold-down mechanism; 51. a padding seat; 52. a hydraulic cylinder; 53. a second press arm; 54. briquetting; 55. a pin shaft; 6. a bumping post; 7. a first positioning block; 8. a second positioning block; 91. a work table base plate; 92. an end seat; 93. an L-shaped connecting plate; 94. a servo motor; 95. a base plate; 96. a speed reducer; 97. an index plate; 10. a third hold-down mechanism; 101. a second single acting cylinder; 102. a second hinge base; 103. a third press arm; 104. a second link; 11. a base plate; 11a, a via hole;

Detailed Description

The technical solution of the present invention will be clearly and completely described with reference to the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The present invention will be further explained with reference to the accompanying drawings.

Please refer to fig. 3-10.

The utility model discloses a machine tool clamp includes a horizontally bottom plate 11, and fixed setting in location stem 1, bumping post 6, first locating piece 7, second locating piece 8, third hold-down mechanism 10 and two first hold-down mechanism 4, two second hold-down mechanism 5, four supporting shoes 2 on bottom plate 11.

Wherein, the lower end of the positioning core column 1 is vertically fixed on the bottom plate 11, and the upper end thereof is a cambered surface. The two first pressing mechanisms 4 and the two second pressing mechanisms 5 are used for pressing downwards. Two first hold-down mechanism 4 correspond and set up in location stem 1 front and back both sides. The two second pressing mechanisms 5 are correspondingly arranged on the front side and the rear side of the positioning core column 1. The second pressing mechanism 5 and the first pressing mechanism 4 are located on the left and right opposite sides of the positioning stem 1.

The four supporting blocks 2 are fixed on the upper end of the bottom plate 11. And the corresponding pair is located directly below the first pressing mechanism 4 and the second pressing mechanism 5. The top ends of the supporting blocks 2 form a positioning surface, wherein the upper ends of the two supporting blocks 2 at diagonal positions are fixed with positioning pins 3.

The left end and the right end of the positioning core column 1 facing the two second pressing mechanisms 5 are inwards contracted to form a first abdicating surface 1a which vertically extends forwards and backwards. The rear ends of the two supporting blocks 2 at the rear side contract inwards to form a second abdicating surface 2a which extends vertically and leftwards and rightwards.

The lower end of the bumping post 6 is vertically fixed to the upper end of the base plate 11. The retaining pillar 6 is located in the middle of the four support blocks 2 in the left-right direction. The retaining posts 6 are located on the front side of the four support blocks 2 in the front-rear direction. The first positioning block 7 and the second positioning block 8 are fixed on the bottom plate 11 and located on the left and right opposite sides of the four supporting blocks 2 far away from the first pressing mechanism 4. The first positioning block 7 is located at the front-rear middle of the two second pressing mechanisms 5. The second positioning block 8 is located at the front side of the two second pressing mechanisms 5.

The first pressing mechanism 4 includes a seat plate 41, a single acting cylinder 45, a pressing arm 43, a connecting rod 44, and a hinge base 42, wherein the seat plate 41 is horizontally fixed to the upper end of the bottom plate 11. The cylinder body of the single-acting cylinder 45 is fixed on the bottom plate 11, and the piston rod of the single-acting cylinder is upwards movably arranged on the bottom plate 11 and the seat plate 41 in a penetrating way and then is hinged with one end of the pressure arm 43. The hinge base 42 is fixed to the upper end of the seat plate 41. The middle portion of the pressing arm 43 is hinged to the hinge base 42 through a link 44. The other end of the pressing arm 43 faces downward toward one of the support blocks 2.

The third pressing mechanism 10 includes a second single acting cylinder 101, a second hinge base 102, a third pressing arm 103, and a second link 104. The second hinge base 102 is fixed to the upper end of the base plate 11. The cylinder body of the second single cylinder 101 is fixed to the lower end of the bottom plate 11. The third pressing arm 103 vertically penetrates through a through hole 11a correspondingly formed in the bottom plate 11. The piston rod of the second single acting cylinder 101 extends forward and is hinged to the lower end of the third pressing arm 103. The rear end of the second link 104 is hinged to the second hinge base 102. The front end of the second connecting rod 104 is hinged to the middle of the third pressing arm 103.

The second pressing mechanism 5 includes a bed 51, a hydraulic cylinder 52, a second pressing arm 53, and a pressing block 54. The lower end of the cylinder body of the hydraulic cylinder 52 is fixed to the upper end of the base plate 11 via a raising seat 51. The piston rod of the hydraulic cylinder 52 projects upward and is inclined toward the positioning stem 1 side. One end of the second pressure arm 53 is vertically fixed to the piston rod of the hydraulic cylinder 52. The pressing piece 54 is rotatably provided on the lower side of the other end of the second pressing arm 53 by a pin 55 extending forward and backward. The lower end of the pressing block 54 is recessed inward to form an arc-shaped positioning concave surface extending forward and backward. The second presser arm 53 is recessed to form a stopper surface for preventing the pressing piece 54 from being excessively rotated. Thereby automatically aligning and holding the pressing block 54 with the outer surface of the first longitudinal pipe 04. Avoid the activity angle too big.

In the second pressing mechanism 5 near the first and second guide pipes, one end of the second pressing arm 53 near the positioning stem 1 is inclined toward the first and second guide pipes. Therefore, the end surfaces of the first guide pipe and the second guide pipe can be prevented from being shielded. So as to conveniently mill the end face, drill holes and tap the threads of the taper pipe.

The utility model discloses a machine tool clamp, its bottom plate 11 rotates when using and sets up on the fourth shaft revolving stage. The fourth axis turntable includes two end bases 92 opposite to each other in the left-right direction and fixed to the upper end of a bottom plate 91 of a workbench. The end seat 92 is fixed to the table base 91 by a backing plate 95. An index plate 97 extending axially to the left and right is rotatably provided on the opposite end of the two end seats 92. The front and rear ends of the bottom plate 11 are fixedly connected with the index plate 97 at the corresponding end through an L-shaped connecting plate 93. A servomotor 94 is drivingly connected to one of the indexing plates 97 via a reduction gear 96.

The utility model discloses a machine tool fixture it fixes a position the dead eye through the location stem, fixes a position the bottom hole through the locating pin on two supporting shoes, compresses tightly from both sides respectively through two first hold-down mechanism and two second hold-down mechanism simultaneously, and third hold-down mechanism compresses tightly from end cover one side, sets up first face of stepping down, second face of stepping down simultaneously, can conveniently carry out rough milling to main cylinder hole and terminal surface.

The above are only preferred embodiments of the present invention. It should be noted that. As would be apparent to one of ordinary skill in the art. Without departing from the principles of the present invention. Several improvements and refinements can also be made. Such modifications and finishes are also to be considered as the scope of protection of the present invention.

Other parts not described in detail in the utility model belong to the prior art. And thus will not be described in detail herein.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention. And not as restrictive. Although the present invention has been described in detail with reference to the foregoing embodiments. Those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified. Or equivalents may be substituted for some or all of these features. And such modifications or substitutions. The essence of the corresponding technical proposal does not depart from the scope of the technical proposal of each embodiment of the utility model.

Claims (5)

1. A machine tool fixture for a diverter housing, comprising:

a horizontally arranged bottom plate (11);

the lower end of the positioning core column (1) is vertically fixed on the bottom plate (11);

two first pressing mechanisms (4) which are correspondingly arranged at the front side and the rear side of the positioning core column (1) and are used for pressing downwards;

two second pressing mechanisms (5) which are correspondingly arranged at the front side and the rear side of the positioning core column (1) and used for pressing downwards, wherein the second pressing mechanisms (5) and the first pressing mechanisms (4) are positioned at the left side and the right side of the positioning core column (1);

the four supporting blocks (2) are fixed at the upper end of the bottom plate (11) and correspondingly aligned to the positions right below the first pressing mechanism (4) and the second pressing mechanism (5), and the top ends of the supporting blocks (2) form positioning surfaces; the upper ends of two of the supporting blocks (2) in diagonal positions are also fixed with vertical positioning pins (3);

the lower end of the retaining column (6) is vertically fixed at the upper end of the bottom plate (11), the retaining column (6) is positioned in the middle of the four supporting blocks (2) in the left-right direction, and the retaining column (6) is positioned on the front side of the four supporting blocks (2) in the front-back direction;

the first positioning block (7) and the second positioning block (8) are fixed on the bottom plate (11) and are positioned on the left side and the right side of the four supporting blocks (2) far away from the first pressing mechanism (4), the first positioning block (7) is positioned in the front-back middle of the two second pressing mechanisms (5), and the second positioning block (8) is positioned on the front side of the two second pressing mechanisms (5);

and a third pressing mechanism (10) for pressing backward;

wherein, the orientation of location stem (1) is two the left and right sides one end of second hold-down mechanism (5) contracts inwards and forms vertical and front and back extension first abdication face (1a), and the more back one side two the rear end of supporting shoe (2) contracts inwards and forms vertical and left and right extension second abdication face (2 a).

2. The machine tool fixture for the steering gear shell according to claim 1, wherein the third pressing mechanism (10) comprises a second single-acting cylinder (101), a second hinged support (102), a third pressing arm (103) and a second connecting rod (104), the second hinged support (102) is fixed at the upper end of the bottom plate (11), a cylinder body of the second single-acting cylinder (101) is fixed at the lower end of the bottom plate (11), and a through hole (11a) correspondingly formed in the bottom plate (11) is vertically penetrated by the third pressing arm (103); a piston rod of the second single-acting cylinder (101) extends forwards and is hinged to the lower end of the third pressing arm (103), and the rear end of the second connecting rod (104) is hinged to the second hinged support (102); the front end of the second connecting rod (104) is hinged to the middle of the third pressing arm (103).

3. The machine tool clamp for a diverter housing according to claim 2, characterized in that the first pressing mechanism (4) comprises:

a seat plate (41) horizontally fixed on the upper end of the bottom plate (11);

a single-acting cylinder (45) with a cylinder body fixed on the bottom plate (11);

a pressure arm (43) and a connecting rod (44), wherein a piston rod of the single-acting cylinder (45) is upwards movably arranged on the bottom plate (11) and the seat plate (41) in a penetrating manner and then is hinged with one end of the pressure arm (43);

the middle part of the pressure arm (43) is hinged to the hinged support (42) through the connecting rod (44), and the supporting block (2) is arranged right below the other end of the pressure arm (43).

4. The machine tool fixture for a steering gear housing according to claim 2, wherein the second pressing mechanism (5) comprises a raising seat (51), a hydraulic cylinder (52), a second pressing arm (53) and a pressing block (54), the lower end of the cylinder body of the hydraulic cylinder (52) is fixed to the upper end of the base plate (11) through the raising seat (51), the piston rod of the hydraulic cylinder (52) extends upwards and inclines towards one side of the positioning core column (1), one end of the second pressing arm (53) is vertically fixed to the piston rod of the hydraulic cylinder (52), the pressing block (54) is rotatably arranged below the other end of the second pressing arm (53) through a pin shaft (55) extending forwards and backwards, and the lower end of the pressing block (54) is recessed inwards to form an arc-shaped positioning concave surface extending forwards and backwards; the second pressure arm (53) is recessed to form a stop surface for preventing the second pressure arm (53) from over-rotating.

5. The machine tool fixture for a diverter housing according to claim 2, characterized in that the upper end of the positioning stem (1) is a cambered surface.

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