CN217764836U - Special gauge for steering screw of automobile power steering gear - Google Patents

Abstract

The utility model relates to an utensil is examined in special use of automobile power steering ware steering screw, which comprises a bracket, the support is provided with two, and is provided with the spout below the mid portion of two supports to be provided with the work piece between two supports, the inboard sliding connection of spout has first pillar, and one side of spout is provided with the second pillar, the top of first pillar and second pillar is all rotated and is connected with the ball, and the interval is adjustable between ball and first pillar and the second pillar, electric connection's connecting wire between equal fixedly connected with and the ball on first pillar and the second pillar, and electric connection between connecting wire and the external monitoring mechanism, this scheme through the rotation of two thread bush, carries out the transmission to the position of two movable blocks for all contact between the ball of its front end and the work piece, when appearing breaking between two balls, the external equipment warning, convenient evidence promptly detects the work piece unqualifiedly.

Description

Special gauge for steering screw of automobile power steering gear

Technical Field

The application relates to the technical field of automobile manufacturing, in particular to a special gauge for a steering screw of an automobile power steering gear.

Background

With the rapid development of the automobile industry, higher requirements are put forward on the product quality of the automobile steering gear. Meanwhile, the demand on the capacity is higher and higher due to the continuous expansion of the sales market. In the existing automobile industry in China, the precision required by the matching of a screw rod and a nut of an automobile steering gear directly relates to the product quality and the service performance of the automobile steering gear, so that the machining precision and the inspection method for the coaxiality of a screw thread raceway and a bearing raceway of the automobile steering gear are higher.

The detection of the thread roller path and the bearing roller path in the existing equipment is mostly detected and displayed through a dial indicator, at least two workers are needed to cooperate, and clamping during detection is inconvenient, so that the detection rate is slow, and the detection efficiency is influenced. Therefore, the skilled person in the art provides a special gauge for a steering screw of an automobile power steering gear, so as to solve the problems in the background art.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem provided in the background art, the application provides a special gauge for a steering screw of an automobile power steering gear.

The application provides a special gauge of automobile power steering ware steering screw adopts following technical scheme:

the utility model provides an utensil is examined in special use of auto power steering ware steering screw, includes the support, the support is provided with two, and is provided with the spout below the mid portion of two supports to be provided with the work piece between two supports, the inboard sliding connection of spout has first pillar, and one side of spout is provided with the second pillar, the top of first pillar and second pillar is all rotated and is connected with the ball, and the interval is adjustable between ball and first pillar and the second pillar, electric connection's connecting wire between equal fixedly connected with and the ball on first pillar and the second pillar, and electric connection between connecting wire and the outside monitoring mechanism.

Through adopting above-mentioned technical scheme, contact between ball and the work piece through whether electric connection always between ball and the outside monitoring mechanism realizes the detection to screw thread raceway and bearing raceway axis position on the work piece.

Preferably, the top of first pillar is provided with first movable block, and the top of second pillar is provided with the second movable block, the ball inlays and locates inside first movable block and the second movable block top, first movable block is two segmentation structures, and fixedly connected with spring between two sections.

Through adopting above-mentioned technical scheme, the movable block is used for the fixed of ball at work piece radial position, and the spring guarantees can carry out the displacement when the work piece is close to the pillar, avoids device self to take place to damage.

Preferably, the equal fixedly connected with threaded rod in bottom of first movable block and second movable block, it is connected with the thread bush to rotate on first pillar and the second pillar, and threaded connection between thread bush and the threaded rod.

Through adopting above-mentioned technical scheme, threaded connection between thread bush and the threaded rod realizes adapting to the work piece diameter of different models to the regulation of movable block in work piece whole body position.

Preferably, one side bolt fixedly connected with driving motor in two in the support, and driving motor's output shaft coaxial line fixedly connected with grip ring, the grip ring includes outer loop and holding piece, the inboard annular array of outer loop rotates and is connected with a plurality of holding pieces, and the free end of holding piece passes through elastic connection between extrusion spring and the outer loop, the vertical terminal surface annular array fixedly connected with of outer loop has a plurality of friction strips.

Through adopting above-mentioned technical scheme, the holding piece carries out the centre gripping to the work piece under extrusion spring's the extrusion power effect, and extrusion spring guarantees the stability of work piece axial position, and the friction strip guarantees that when driving motor transmission work piece rotated, relative rotation can not take place for grip ring and work piece.

Preferably, two another outside bolt fixedly connected with electric telescopic handle in the support, and fixed connection between electric telescopic handle's output and the traveller, the top of traveller is provided with the chamfer, and closely laminates the setting between the end of traveller and work piece.

Through adopting above-mentioned technical scheme, electric telescopic handle passes through the traveller transmission work piece and moves to driving motor one side, makes the work piece plug to the inboard of grip ring.

To sum up, the application comprises the following beneficial technical effects:

the positions of the two movable blocks are transmitted through the rotation of the two threaded sleeves, so that the balls at the front ends of the two movable blocks are in contact with the workpiece, and when the two balls are broken, the external equipment gives an alarm, namely, the workpiece is conveniently proved and detected to be unqualified; through the promotion of electric telescopic rod to the work piece, the work piece front end pushes away the holding piece to enter the inboard of holding piece, promote the convenience of centre gripping, because the extrusion spring elasticity size in the holding piece outside is the same, thereby guaranteed the stability of work piece whole axis, guarantee that subsequent testing result is accurate.

Drawings

FIG. 1 is an isometric view of a gauge specific to an automotive power steering gear steering screw according to an embodiment of the present application;

FIG. 2 is a first pillar structure diagram of a dedicated checking fixture for a steering screw of an automobile power steering gear in an embodiment of the present application;

FIG. 3 is a clamping ring structure diagram of a special fixture for a steering screw of an automobile power steering gear in the embodiment of the present application.

Description of reference numerals: 1. a support; 2. a connecting wire; 3. a drive motor; 4. a traveler; 5. an electric telescopic rod; 6. a clamp ring; 601. an outer ring; 602. a clamping piece; 603. a compression spring; 604. rubbing the strips; 7. a workpiece; 8. a chute; 9. a first support column; 10. a second support; 11. a threaded sleeve; 12. a second movable block; 13. a ball bearing; 14. a first movable block; 15. a threaded rod; 16. a spring.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses utensil is examined in special use of automobile power steering ware steering screw. Referring to fig. 1-3, a special checking fixture for a steering screw of an automobile power steering gear comprises two brackets 1, two brackets 1 are arranged, a sliding groove 8 is arranged below the middle part of each bracket 1, a workpiece 7 is arranged between the two brackets 1, a threaded raceway and a bearing raceway are arranged on the workpiece 7, a first support 9 is slidably connected to the inner side of the sliding groove 8, the first support 9 and the threaded raceway are correspondingly arranged, the first support 9 slides along the sliding groove 8 to one side under the transmission of the threaded raceway to ensure the interaction between the ball 13 and the workpiece 7, a second support 10 is arranged on one side of the sliding groove 8, the position of the second support 10 is fixed and is correspondingly arranged between the bearing raceways, the tops of the first support 9 and the second support 10 are both rotatably connected with the ball 13, the distance between the ball 13 and the first support 9 and the second support 10 is adjustable, a first movable block 14 is arranged at the top end of the first support 9, the top end of the second support column 10 is provided with a second movable block 12, the balls 13 are embedded inside the top ends of the first movable block 14 and the second movable block 12, the two balls 13 are respectively embedded inside the threaded raceway and the bearing raceway, the first movable block 14 is of a two-section structure, a spring 16 is fixedly connected between the two sections, the spring 16 is not stressed all the time when adjusting the distance between the balls 13 on the first movable block 14 and the workpiece 7, and is used for distance adjustment only when deviation exists between the threaded raceway and the bearing raceway, so as to ensure the structural stability of the device, threaded rods 15 are fixedly connected to the bottoms of the first movable block 14 and the second movable block 12, the threaded rods 15 are radially limited to the insides of the first support column 9 and the second support column 10, so as to ensure the threaded sleeves 11 to transmit the threaded sleeves in the axial direction, and threaded sleeves 11 are rotatably connected to the first support column 9 and the second support column 10, the threaded sleeve 11 is connected with the threaded rod 15 in a threaded manner, the threaded rod 15 is driven to move in the axial direction by rotating the threaded sleeve 11, the position of the ball 13 is adjusted, the first support 9 and the second support 10 are both fixedly connected with the connecting wire 2 which is electrically connected with the ball 13, and the connecting wire 2 is electrically connected with an external monitoring mechanism, since the workpiece 7 is of a metal structure, there is electrical conductivity, when both balls 13 are in contact with the workpiece 7, the external monitoring mechanism is communicated with each other, after a circuit is disconnected, the external monitoring mechanism gives an alarm, one side of one of the two brackets 1 is fixedly connected with a driving motor 3 through a bolt, and the output shaft of the driving motor 3 is coaxially and fixedly connected with a clamping ring 6, the clamping ring 6 comprises an outer ring 601 and clamping sheets 602, the inner side of the outer ring 601 is connected with a plurality of clamping sheets 602 in an annular array manner, and the free end of the clamping piece 602 is elastically connected with the outer ring 601 through the extrusion spring 603, the clamping piece 602 is in an arc structure, and the top end of the clamping piece 602 is of an inclined arc structure towards one side of the clamping ring 6, so that the clamping piece is convenient to be attached to the outer wall of the workpiece 7, the arc surface can be better contacted with one end of the workpiece 7 with different diameters, thereby pushing the clamping sheets 602 apart by the workpiece 7, the plurality of friction strips 604 are fixedly connected with the vertical end surface annular array of the outer ring 601, when the friction strips 604 contact with the end surface of the workpiece 7, the friction force between the friction strips and the end surface is increased, thereby ensuring that the clamping ring 6 and the workpiece 7 are relatively static, the other outer side of the two brackets 1 is fixedly connected with an electric telescopic rod 5 through a bolt, and the output end of the electric telescopic rod 5 is fixedly connected with the sliding column 4, the top end of the sliding column 4 is provided with a chamfer, and the sliding column 4 is tightly attached to the tail end of the workpiece 7.

The implementation principle of the special checking fixture for the steering screw of the automobile power steering gear in the embodiment of the application is as follows: the groove behind the workpiece 7 is completely attached and contacted with the front end of the sliding column 4, the electric telescopic rod 5 is started to extend, the workpiece 7 is pushed forwards, the front end of the workpiece 7 is inserted into the inner side of the clamping ring 6, the front end of the workpiece 7 pushes the clamping piece 602 in the clamping ring 6, the inner side of the clamping piece 602 is placed, under the action of the extrusion spring 603, the axis of the workpiece 7 is ensured to be positioned on the axis of the clamping ring 6, the friction force between the workpiece 7 and the friction strip 604 is increased, and the workpiece 7 is ensured to be stably driven under the drive of the drive motor 3; rotate two thread bush 11, transmission threaded rod 15 changes that stretches out and draws back, finally make two balls 13 respectively with the screw thread raceway on the work piece 7, contact between the bearing raceway, the spring 16 of first pillar 9 front end is atress this moment simultaneously, in driving motor 3 transmission work piece 7 rotation process, when the axis of screw thread raceway takes place to squint or when deflecting, take place to extrude or the space appears between the ball 13 that is located first pillar 9 front end and the screw thread raceway on the work piece 7, when the space appears between ball 13 and the screw thread raceway, break circuit takes place between two balls 13, thereby outside monitoring mechanism reports to the police, the product that detects promptly is unqualified.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (5)

1. The utility model provides an utensil is examined in special use of automobile power steering ware steering screw, includes support (1), support (1) is provided with two, and is provided with spout (8) below the mid portion of two supports (1) to be provided with work piece (7), its characterized in that between two supports (1): spout (8) inboard sliding connection has first pillar (9), and one side of spout (8) is provided with second pillar (10), the top of first pillar (9) and second pillar (10) all rotates and is connected with ball (13), and the interval is adjustable between ball (13) and first pillar (9) and second pillar (10), electric connection's connecting wire (2) between equal fixedly connected with and ball (13) on first pillar (9) and second pillar (10), and electric connection between connecting wire (2) and the external monitoring mechanism.

2. The special inspection device for the steering screw of the automobile power steering gear according to claim 1, characterized in that: the top of first pillar (9) is provided with first movable block (14), and the top of second pillar (10) is provided with second movable block (12), ball (13) are inlayed and are located inside first movable block (14) and second movable block (12) top, first movable block (14) are two segmentation structures, and fixedly connected with spring (16) between two segments.

3. The special inspection device for the steering screw of the automobile power steering gear according to claim 2, characterized in that: the equal fixedly connected with threaded rod (15) in bottom of first movable block (14) and second movable block (12), it is connected with thread bush (11) to rotate on first pillar (9) and second pillar (10), and threaded connection between thread bush (11) and threaded rod (15).

4. The special inspection device for the steering screw of the automobile power steering gear according to claim 1, characterized in that: two one side bolt fixedly connected with driving motor (3) of one in support (1), and the output shaft coaxial line fixedly connected with grip ring (6) of driving motor (3), grip ring (6) are including outer loop (601) and clamping piece (602), the inboard annular array of outer loop (601) rotates and is connected with a plurality of clamping pieces (602), and the free end of clamping piece (602) passes through elastic connection between extrusion spring (603) and outer loop (601), a plurality of friction strips (604) of vertical terminal surface annular array fixedly connected with of outer loop (601).

5. The special inspection device for the steering screw of the automobile power steering gear according to claim 1, characterized in that: two another outside bolt fixedly connected with electric telescopic handle (5) in support (1), and fixed connection between the output of electric telescopic handle (5) and traveller (4), the top of traveller (4) is provided with the chamfer, and closely laminates the setting between the end of traveller (4) and work piece (7).

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