Assembly fixture for fixing ball screw and shell simultaneously

Abstract

The utility model relates to the technical field of steering systems, in particular to an assembly fixture used for fixing a ball screw and a shell at the same time. An assembly fixture for fixing a ball screw and a shell at the same time comprises a bearing washer restoration mechanism and a shell positioning mechanism, and is characterized in that the bearing washer restoration mechanism is fixed on the shell positioning mechanism; compared with the prior art, the assembling clamp for fixing the ball screw and the shell at the same time is provided so as to solve the problems that in the prior art, an assembling clamp is poor in shell fine positioning effect, clamping is not coordinated, and the bearing washer restoration effect is poor.

Description

Technical Field

[0001] The utility model relates to the technical field of steering systems, in particular to an assembly fixture used for fixing a ball screw and a housing at the same time. Background Art

[0002] During the assembly of the automobile steering system, the housing end cover needs to be assembled into the housing with the ball screw unit. For a long time, the precise positioning stability of the housing on the fixture and the alignment of the bearing gasket on the ball screw unit have been the main problems in the assembly process of the steering gear housing end cover, ball screw and housing. How to ensure the precise positioning stability of the housing on the fixture during the steering gear assembly process and reduce the impact of the housing position deviation and the misalignment of the bearing gasket on the assembly process of the steering gear housing end cover is the key to the assembly of the steering gear housing end cover and the housing with the ball screw unit. Summary of the invention

[0003] The utility model overcomes the deficiencies of the prior art and provides an assembly fixture for fixing a ball screw and a housing at the same time, so as to solve the problems existing in the prior art that the assembly fixture has poor precision positioning effect on the housing and poor alignment effect on the bearing washer.

[0004] In order to achieve the above object, an assembly fixture for fixing a ball screw and a housing is designed, comprising a bearing washer alignment mechanism and a housing positioning mechanism, characterized in that: the bearing washer alignment mechanism is fixed on the housing positioning mechanism;

[0005] The bearing washer correcting mechanism comprises a push cylinder, a cylinder mounting base plate, a clamp mounting plate, a pneumatic clamp 1, an L-shaped connecting plate, and a correcting clamp. The push cylinder is fixedly connected to the cylinder mounting base plate, the driving shaft of the push cylinder is connected to one end of the clamp mounting plate, the other end of the clamp mounting plate is connected to the pneumatic clamp 1, and the left and right sides of the clamp of the pneumatic clamp 1 are connected to the left correcting clamp and the right correcting clamp through the left L-shaped connecting plate and the right L-shaped connecting plate respectively.

[0006] The shell positioning mechanism includes a fixed top plate, an adjustment block, a second pneumatic clamp, a clamp mounting seat, a latch, a sheet-like clamp, and a transition plate. A transition plate is provided below the fixed top plate, and the second pneumatic clamp is connected to the lower front end of the transition plate. The left and right sides of the clamp of the second pneumatic clamp are respectively connected to one end of the left clamp mounting seat and the right clamp mounting seat, and the other ends of the left clamp mounting seat and the right clamp mounting seat are respectively connected to the left sheet-like clamp and the right sheet-like clamp through a latch.

[0007] The cylinder mounting bottom plate of the bearing washer correcting mechanism is connected to the fixed top plate of the housing positioning mechanism through bolts, and the bearing washer correcting mechanism is located on the top of the housing positioning mechanism.

[0008] The left L-shaped connecting plate and the right L-shaped connecting plate are L-shaped module structures.

[0009] The inner sides of the left and right return jaws are provided with V-shaped grooves, and the tails of the left and right return jaws are respectively connected to the lower right-angle sides of the left and right L-shaped connecting plates.

[0010] The transition plate is connected to the fixed top plate through an adjustment block, and the adjustment block is located at a side position of the fixed top plate.

[0011] The left-side sheet-shaped clamping jaw and the right-side sheet-shaped clamping jaw are sheet-shaped clamping jaw structures with a thickness of 2 mm.

[0012] Compared with the prior art, the utility model provides an assembly fixture for fixing the ball screw and the housing at the same time, so as to solve the problems existing in the prior art such as poor precision positioning effect of the assembly fixture on the housing, uncoordinated clamping, poor alignment effect of the bearing gasket, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model.

[0014] Figure 2 It is a schematic diagram of the bearing washer correcting mechanism in the structure of the utility model.

[0015] Figure 3 It is a schematic diagram of the housing positioning mechanism in the structure of the utility model. DETAILED DESCRIPTION

[0016] The utility model is further described below with reference to the accompanying drawings.

[0017] like Figures 1 to 3 As shown, the bearing washer correcting mechanism 1 is fixed on the housing positioning mechanism 2 .

[0018] The bearing washer correcting mechanism 1 includes a pushing cylinder, a cylinder mounting base plate, a clamp mounting plate, a pneumatic clamp 1, an L-shaped connecting plate, and a correcting clamp. The cylinder mounting base plate 1-2 is fixedly connected to the pushing cylinder 1-1, the driving shaft of the pushing cylinder 1-1 is connected to one end of the clamp mounting plate 1-3, and the other end of the clamp mounting plate 1-3 is connected to the pneumatic clamp 1-4, and the left and right sides of the clamp of the pneumatic clamp 1-4 are respectively connected to the left correcting clamp 1-7 and the right correcting clamp 1-8 through the left L-shaped connecting plate 1-5 and the right L-shaped connecting plate 1-6.

[0019] The left L-shaped connecting plate 1-5 and the right L-shaped connecting plate 1-6 are L-shaped module structures.

[0020] A V-shaped groove is provided on the inner side of the left-side return jaw 1-7 and the right-side return jaw 1-8, and the tails of the left-side return jaw 1-7 and the right-side return jaw 1-8 are respectively connected to the lower right-angle sides of the left-side L-shaped connecting plate 1-5 and the right-side L-shaped connecting plate 1-6.

[0021] The left-side correcting jaw 1-7 and the right-side correcting jaw 1-8 are clamped and loosened by the pneumatic jaw 1-4, and the left-side correcting jaw 1-7 and the right-side correcting jaw 1-8 are moved forward and backward by the push cylinder 1-1 controller to solve the problem of the bearing gasket correction, that is, the push cylinder 1-1 drives the jaw mounting plate 1-3 forward and backward, and the jaw mounting plate 1-3 drives the pneumatic jaw 1-4 forward and backward.

[0022] The shell positioning mechanism 2 includes a fixed top plate, an adjustment block, a pneumatic clamp 2, a clamp mounting seat, a latch, a sheet clamp, and a transition plate. A transition plate 2-4 is provided below the fixed top plate 2-1. The pneumatic clamp 2-3 is connected to the lower front end of the transition plate 2-4. The left and right sides of the clamp of the pneumatic clamp 2-3 are respectively connected to one end of the left clamp mounting seat 2-5 and the right clamp mounting seat 2-6. The other ends of the left clamp mounting seat 2-5 and the right clamp mounting seat 2-6 are respectively connected to the left sheet clamp 2-8 and the right sheet clamp 2-9 through the latch 2-7.

[0023] The cylinder mounting base plate 1 - 2 of the bearing washer correcting mechanism 1 is connected to the fixed top plate 2 - 1 of the housing positioning mechanism 2 by bolts, and the bearing washer correcting mechanism 1 is located on the top of the housing positioning mechanism 2 .

[0024] The transition plate 2-4 is connected to the fixed top plate 2-1 through an adjustment block 2-2, and the adjustment block 2-2 is located at the side of the fixed top plate 2-1.

[0025] The left-side sheet-like clamping jaw 2-8 and the right-side sheet-like clamping jaw 2-9 are sheet-like clamping jaw structures with a thickness of 2 mm.

[0026] The pneumatic clamp 2-3 is fixedly connected to the fixed top plate 2-1 through a transition plate 2-4, and an adjustment block 2-2 is arranged on the side of the transition plate 2-4.

[0027] The pins 2-7 on the left and right sides are respectively installed on the left clamping jaw mounting seat 2-5 and the right clamping jaw mounting seat 2-6 to fix the left sheet clamping jaw 2-8 and the right sheet clamping jaw 2-9. The left sheet clamping jaw 2-8 and the right sheet clamping jaw 2-9 are designed with 2mm thick center bushing profiling jaws, which can achieve precise positioning of the shell by accurately holding the center bushing on the shell; and the adjustment block 2-2 is equipped with a grinding block to adjust the installation position of the transition plate 2-4, and then the adjustment of the holding center of the shell positioning mechanism is achieved through the installation position of the pneumatic clamping jaw 2-3.

[0028] In the utility model, the left-side sheet-shaped clamping jaw 2-8 and the right-side sheet-shaped clamping jaw 2-9 can realize rapid clamping jaw change by plugging and unplugging the latch pins 2-7 on the left and right sides.

Claims

1. An assembly fixture for fixing a ball screw and a housing at the same time, comprising a bearing washer alignment mechanism and a housing positioning mechanism, characterized in that: The bearing washer correcting mechanism (1) is fixed on the housing positioning mechanism (2); The bearing washer correcting mechanism (1) comprises a push cylinder, a cylinder mounting base plate, a clamping jaw mounting plate, a pneumatic clamping jaw 1, an L-shaped connecting plate, and a correcting clamping jaw. The cylinder mounting base plate (1-2) is fixedly connected to the push cylinder (1-1), the driving shaft of the push cylinder (1-1) is connected to one end of the clamping jaw mounting plate (1-3), the other end of the clamping jaw mounting plate (1-3) is connected to the pneumatic clamping jaw 1 (1-4), and the left and right sides of the clamping jaw of the pneumatic clamping jaw 1 (1-4) are respectively connected to the left correcting clamping jaw (1-7) and the right correcting clamping jaw (1-8) via the left L-shaped connecting plate (1-5) and the right L-shaped connecting plate (1-6). The shell positioning mechanism (2) comprises a fixed top plate, an adjustment block, a second pneumatic clamp, a clamp mounting seat, a latch, a sheet-shaped clamp, and a transition plate. A transition plate (2-4) is provided below the fixed top plate (2-1). The second pneumatic clamp (2-3) is connected to the lower front end of the transition plate (2-4). The left and right sides of the clamp of the second pneumatic clamp (2-3) are respectively connected to one end of a left clamp mounting seat (2-5) and a right clamp mounting seat (2-6). The other ends of the left clamp mounting seat (2-5) and the right clamp mounting seat (2-6) are respectively connected to the left sheet-shaped clamp (2-8) and the right sheet-shaped clamp (2-9) via a latch (2-7).

2. The assembly fixture for fixing the ball screw and the housing according to claim 1, characterized in that: The cylinder mounting base plate (1-2) of the bearing washer correcting mechanism (1) is connected to the fixed top plate (2-1) of the housing positioning mechanism (2) via bolts, and the bearing washer correcting mechanism (1) is located on the top of the housing positioning mechanism (2).

3. The assembly fixture for fixing the ball screw and the housing at the same time according to claim 1, characterized in that: The left L-shaped connecting plate (1-5) and the right L-shaped connecting plate (1-6) are L-shaped module structures.

4. The assembly fixture for fixing the ball screw and the housing at the same time according to claim 1, characterized in that: The inner sides of the left-side return clamping jaw (1-7) and the right-side return clamping jaw (1-8) are provided with V-shaped grooves, and the tails of the left-side return clamping jaw (1-7) and the right-side return clamping jaw (1-8) are respectively connected to the lower right-angle sides of the left-side L-shaped connecting plate (1-5) and the right-side L-shaped connecting plate (1-6).

5. The assembly fixture for fixing the ball screw and the housing at the same time according to claim 1, characterized in that: The transition plate (2-4) is connected to the fixed top plate (2-1) via an adjustment block (2-2), and the adjustment block (2-2) is located on the side of the fixed top plate (2-1).

6. The assembly fixture for fixing the ball screw and the housing at the same time according to claim 1, characterized in that: The left-side sheet-shaped clamping jaw (2-8) and the right-side sheet-shaped clamping jaw (2-9) are sheet-shaped clamping jaw structures with a thickness of 2 mm.

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