CN209998691U

CN209998691U - kinds of hub press-fitting clamp

Info

Publication number: CN209998691U
Application number: CN201822247244.6U
Authority: CN
Inventors: 涂大勋; 刘雪刚; 周湘林
Original assignee: Chongqing Dajiang Cheqiao Co Ltd
Current assignee: Chongqing Dajiang Cheqiao Co Ltd
Priority date: 2018-12-29
Filing date: 2018-12-29
Publication date: 2020-01-31
Anticipated expiration: 2028-12-29

Abstract

The utility model discloses an general wheel hub pressure equipment anchor clamps, including the swivel nut, the cylinder assembly, stopper and backup pad, swivel nut end is used for through screw thread and knuckle external screw thread connection fixed, the cylinder body assembly is with middle vacancy along the swivel nut external diameter cover outside the swivel nut, the stopper inserts in the groove of swivel nut, stopper side is laminated with the groove end of swivel nut, side and cylinder body assembly terminal surface laminating in addition, prevent that the cylinder body assembly from vertically shifting when pressurizeing, the backup pad center has the macropore, be used for overlapping on the knuckle, the periphery has the aperture, be connected with wheel fastening bolt clearance fit in the wheel hub, during the assembly, backup pad side end face presses to wheel hub assembly main aspects side, the cylinder assembly includes the ejector pin, the effect end of ejector pin acts on the other side end face of backup pad, adopt this anchor clamps can make the whole axle knuckle surface of impressing of wheel hub assembly, both reduce the assembly process, also alleviate operator's working strength, and guarantee the quality of.

Description

kinds of hub press-fitting clamp

Technical Field

The utility model relates to an automobile parts assembly jig, concretely relates to kinds of anchor clamps that are used for assembling hub spare on axle knuckle.

Background

The wheel hub assembly is an important component for ensuring vehicle running in the axle, wherein times of components such as an oil seal, a bearing and the like need to be assembled on an axle knuckle during assembly, the assembly procedures are multiple, the working strength is high, universal wheel hub press-fitting clamps are designed, the wheel hub and all the components thereof can be assembled on the axle knuckle times, the operation is simple, the assembly procedures are reduced, the working strength of an operator is reduced, and the stability of the product quality can be ensured.

Disclosure of Invention

The utility model aims at providing an kinds of wheel hub pressure equipment anchor clamps, it enables the horizontal pressure equipment of wheel hub assembly to the assembly in, easy operation both alleviates intensity of labour, also improves production efficiency and can guarantee product quality's stability.

The utility model relates to an wheel hub pressure equipment anchor clamps, including swivel nut, cylinder assembly, stopper and backup pad.

The end of the screw sleeve is used for being connected and fixed with the outer thread of the steering knuckle through threads.

The cylinder assembly is sleeved outside the threaded sleeve along the outer diameter of the threaded sleeve by a middle vacancy, the limiting block is inserted into the groove of the threaded sleeve, the side of the limiting block is attached to the end of the threaded sleeve, and the side of the limiting block is attached to the end face of the cylinder assembly, so that the cylinder assembly is prevented from longitudinally shifting during pressurization.

The center of the supporting plate is provided with a large hole for being sleeved on a steering knuckle, the periphery of the supporting plate is provided with small holes for being in clearance fit connection with a wheel fastening bolt in a hub, and during assembly, the end face of the side of the supporting plate presses towards the large end side of a hub assembly;

the cylinder assembly comprises a push rod, and the action end of the push rod acts on the side end face of the other side of the supporting plate.

The cylinder assembly comprises an annular cylinder body, an annular piston, the ejector rod and an air valve, the annular piston is arranged in the annular cylinder body, the end of the ejector rod and a connecting hole of the annular piston are fixed into a body in an excessive matching mode, the whole formed by the ejector rod and the annular piston can flexibly slide in the annular cylinder body, the other end of the ejector rod serves as an acting end of the cylinder and acts on the supporting plate, the annular cylinder body is fixedly connected with a air source connector in a threaded mode, and the air valve is fixed on the outer side of the annular cylinder body and is communicated with an air passage of the annular.

, fixing a second joint and a third joint at two transverse ends of a valve body of the air valve respectively through threaded connection, installing a sliding pin and a second moving pin in a middle round hole of the second joint and the third joint in a clearance fit manner, fixing the same nut in the second joint and the third joint respectively, installing a reversing pin in a middle round hole of the valve body of the air valve in a clearance fit manner, connecting a end of the reversing pin through the second nut and fixing the reversing pin in the middle of the valve body, installing the other end of the reversing pin in a handle in a clearance fit manner, and fixing the handle and the reversing pin into a body through the same second nut.

, the annular piston is arranged inside the annular cylinder in a clearance fit mode, a second O-shaped rubber sealing ring and a third O-shaped rubber sealing ring are arranged in grooves in the inner wall and the outer wall of the annular piston to guarantee the air tightness of the annular cylinder body and the annular piston, and the end of the annular cylinder is connected with the annular cylinder in a threaded mode to enable the annular cylinder to be arranged inside the annular cylinder in a screwed mode to be fixed.

, the ejector rod is provided with a small end and a large end cylinder, the small end is placed into the connecting hole on the surface of the annular piston to be excessively matched and fixed into a body, the surface of the large end cylinder is fixed in the spiral hole in a clearance fit mode, and the large end cylinder is sealed through a O-shaped rubber sealing ring in the spiral groove.

, the annular cylinder body is welded and fixed with the outer support and the inner support from by the rear cover to form an annular cavity with open ends, and two identical handles are symmetrically welded on the outer side of the outer support.

When the cylinder assembly is pressurized, the end face of the other side of the supporting plate is pushed to press the side of the large end of the hub assembly, the large hole in the supporting plate is hidden from the outer diameter of a steering knuckle, and the small hole is connected with a wheel fastening bolt in the hub in a clearance fit manner, so that the axial rotation of the supporting plate is prevented during press fitting.

By adopting the hub press-fitting clamp, the hub assembly can be integrally pressed into the outer surface of the axle knuckle, so that the assembly procedures are reduced, the working strength of an operator is reduced, and the product quality is ensured.

Drawings

FIG. 1 is a schematic view of the assembly of a wheel hub assembly with an axle knuckle;

fig. 2 and fig. 2A are schematic structural views of the present invention;

fig. 3 and 3A are schematic structural views of the cylinder block assembly in fig. 2.

In the drawing, 1-a supporting plate, 2-a mandril, 3-an O-shaped rubber sealing ring, 4-a spiral ring, 5-a second O-shaped rubber sealing ring, 6-an annular piston, 7-a third O-shaped rubber sealing ring, 8-an annular cylinder body, 8 a-a rear cover, 8 b-an outer support, 8 c-an inner support, 8 d-a handle, 9-a limiting block, 10-a threaded sleeve, 11-a joint, 12-a nut, 13-a sliding pin, 14-a handle, 15-a second nut, 16-a reversing pin, 17-a second joint, 18-a valve body, 19-a second sliding pin, 20-a third joint, 21-a hub assembly, 22-a hub fastening bolt and 23-a steering knuckle.

Detailed Description

The invention is further described in conjunction with the following figures.

Referring to fig. 2 and 3, the universal hub press-fitting clamp includes a threaded sleeve 10, the end of the threaded sleeve 10 is fixedly connected with the outer thread of the steering knuckle through a thread, the cylinder assembly is placed in a middle vacant position along the outer diameter of the threaded sleeve 10, then the limit block 9 is inserted into the square groove of the threaded sleeve 10, the side of the limit block 9 is attached to the end of the square groove of the threaded sleeve 10, and the side of the limit block is attached to the end face of the cylinder assembly, so that the cylinder assembly is prevented from moving longitudinally during pressurization.

The cylinder assembly comprises an annular cylinder body 8, an annular piston 6, the ejector rod 2 and an air valve.

The annular cylinder body 8 is welded and fixed at by a rear cover 8a, an outer support 8b and an inner support 8c to form an annular cavity with an open end , and two identical handles 8d are symmetrically welded at the outer side of the outer support 8 b.

The first joint 11 is fixed on the outer side of the rear cover in the annular cylinder body 8 in a threaded connection mode, the valve body 18 of the air valve is fixed on the outer side surface of the annular cylinder body 8 in a welding mode, the second joint 17 and the third joint 20 are fixed on the two transverse ends of the valve body 18 in a threaded connection mode respectively, the sliding pin 13 and the second movable pin 19 are installed in round holes in the second joint 17 and the third joint 20 in a clearance fit mode, the same nut 12 is fixed in the second joint 17 and the third joint 20 respectively, the reversing pin 16 is installed in the round hole in the middle of the valve body 18 in a clearance fit mode, the second nut 15 is connected with the end of the reversing pin 16 to be fixed in the middle of the valve body 18, the other end of the reversing pin 16 is installed in the handle 14 in a clearance fit mode, and the handle 14 and the reversing pin 16 are fixed in a body.

An annular piston 6 is arranged in an annular cylinder body 8 in a clearance fit mode, a second O-shaped rubber sealing ring 5 and a third O-shaped rubber sealing ring 7 are arranged in grooves of the inner wall and the outer wall of the annular piston 6, the air tightness of an annular cylinder 8 and the annular piston 6 is guaranteed, a spiral ring 4 is arranged in the annular cylinder body 8 through threaded connection and fixed, the small end of a push rod 2 is placed in a connecting hole in the surface of the annular piston 6 to be excessively matched and fixed to form a body, the surface of a cylinder at the large end of the push rod 2 is fixed in the hole of the spiral ring 4 in a clearance fit mode, the air tightness is guaranteed through a O-shaped rubber sealing ring 3 in the groove of the spiral ring 4, the whole formed by the push rod 2 and the annular piston 6 can flexibly slide in the annular cylinder body 8, the end face of the cylinder at the large end of the push rod 2 is attached to the side of a supporting plate 1 , the end face of the other of the supporting plate 1 is pushed to be pressed to the side of the.

Referring to fig. 1, 2 and 3, the press-fitting jig is used in the following steps:

, sequentially penetrating the wheel fastening bolt 22 and the steering knuckle 23 in the wheel hub into the large hole and the small hole of the support plate 1.

And secondly, connecting and fixing the end of the screw sleeve 10 with the external thread of the steering knuckle, inserting the limit block 9 into the square groove of the screw sleeve 10 after the cylinder assembly is placed along the external diameter of the screw sleeve 10 by using a middle vacancy, attaching the side of the limit block 9 to the end of the square groove of the screw sleeve 10, and attaching the side of the limit block to the end surface of the cylinder assembly, so that the cylinder assembly is prevented from longitudinally moving during pressurization.

And thirdly, attaching the end surface of the cylinder at the large end of the ejector rod 2 in the cylinder assembly to the side of the supporting plate 1 , and connecting the connector 11 and the second connector 17 by using a standard universal communicating air pipe to enable an external air pressure source to be communicated with an air inlet of the valve body 18.

Fourthly, the th sliding pin 13 and the second sliding pin 19 in the second joint 17 and the third joint 20 are respectively moved, so that the th joint 11 and the second joint 17 are in a communication state, and the third joint 20 is in a locking state.

Fifthly, the handle 14 is rotated to enable the reversing pin 16 and the second connector 17 to be in a communicated state, an external air pressure source enters the annular cylinder body 8 of the cylinder assembly through the second connector 17 and the -th connector 11 and continuously pressurizes the annular piston 6 to drive the formed integral annular piston 6 and the ejector rod 2 to move transversely, the cylindrical end face of the large end of the ejector rod 2 pushes the support plate 1, and the wheel hub assembly is driven to be pressed into the outer surface of the steering knuckle along the axial direction.

Sixthly, after the hub assembly 21 is pressed in place, the handle 14 is rotated to enable the reversing pin 16 and an ambient pressure source to be in a locked state, then the second sliding pin 19 in the third joint 20 is moved to enable the third joint 20 to be in a communicated state with the outside, when the pressure of air in the annular cylinder body 8 of the cylinder assembly is reduced to atmospheric pressure, the limiting block 9 is taken down, then the cylinder assembly, the screw sleeve 10 and the supporting plate 1 are sequentially taken down, and the pressing operation is completed.

Claims

The hub press-fitting clamp is characterized by comprising a threaded sleeve (10), a cylinder body assembly, a limiting block (9) and a supporting plate (1);

the end of the screw sleeve (10) is used for being connected and fixed with the external thread of the steering knuckle through threads;

the cylinder body assembly is sleeved outside the threaded sleeve along the outer diameter of the threaded sleeve (10) in a middle vacant position, the limiting block (9) is inserted into the groove of the threaded sleeve (10), the side of the limiting block (9) is attached to the end of the groove of the threaded sleeve (10), and the side of the limiting block ( is attached to the end face of the cylinder body assembly, so that the cylinder body assembly is prevented from longitudinally stretching out when being pressurized;

the center of the supporting plate (1) is provided with a large hole for being sleeved on a steering knuckle, the periphery of the supporting plate is provided with small holes for being in clearance fit connection with a wheel fastening bolt in a wheel hub, and during assembly, the end face of the side of the supporting plate (1) presses towards the large end side of a wheel hub assembly;

the cylinder body assembly comprises a top rod (2), and the action end of the top rod (2) acts on the side end face of the other side of the support plate (1).
2. The wheel hub press-fitting clamp according to claim 1, wherein the cylinder body assembly comprises an annular cylinder body (8), an annular piston (6), the ejector rod (2) and an air valve, the annular piston (6) is arranged in the annular cylinder body (8), the end of the ejector rod (2) and a connecting hole of the annular piston (6) are fixed into a body in an excessive matching mode, the whole formed by the ejector rod (2) and the annular piston (6) can slide in the annular cylinder body (8), the other end of the ejector rod (2) serves as an acting end of an air cylinder and acts on the supporting plate (1), the annular cylinder body (8) is fixedly connected with a air source connector (11) in a threaded mode, and the air valve is fixed to the outer side of the annular cylinder body (8) and communicated with an air.
3. The hub press-fitting clamp according to claim 2, wherein the two transverse ends of the valve body (18) of the air valve are fixedly connected with the second joint (17) and the third joint (20) through threads respectively, the th sliding pin (13) and the second movable pin (19) are installed in the middle round holes of the second joint (17) and the third joint (20) in a clearance fit mode, the th nut (12) is fixed in the second joint (17) and the third joint (20) respectively, the reversing pin (16) is installed in the middle round hole of the valve body (18) in a clearance fit mode, the second nut (15) is connected with the end of the reversing pin (16) to be fixed in the middle of the valve body, the other end of the reversing pin (16) is installed in the handle (14) in a clearance fit mode, and the handle (14) and the reversing pin (16) are fixed to be bodies through the second nut (15) which is the same.
4. The hub press-fitting clamp according to claim 2, wherein the annular piston (6) is arranged on the inner side of the annular cylinder body (8) in a clearance fit mode, the second O-shaped rubber sealing ring (5) and the third O-shaped rubber sealing ring (7) are arranged in grooves in the inner wall and the outer wall of the annular piston (6) to ensure the air tightness of the annular cylinder body (8) and the annular piston (6), and the end of the annular cylinder body (8) is in threaded connection to enable the spiral ring (4) to be arranged in the annular cylinder body for fixing.
5. The hub press-fitting clamp according to claim 2, wherein the ejector rod (2) is provided with a small end and a large end cylinder, the small end is placed into a connecting hole in the surface of the annular piston (6) to be excessively matched and fixed into an body, the surface of the large end cylinder is fixed in a hole of the spiral ring (4) in a clearance fit mode, and the large end cylinder is sealed by a O-shaped rubber sealing ring (3) in a groove of the spiral ring (4).
6. The hub press-fitting clamp according to claim 2, wherein the annular cylinder body (8) is fixed by welding a rear cover (8 a), an outer support (8 b) and an inner support (8 c) at to form an annular cavity with an open end , and two identical handles (8 d) are symmetrically welded on the outer side of the outer support (8 b).