Fixing clamp for outer tubular column casing of automobile steering device

Abstract

The utility model relates to the technical field of automobile steering device production equipment, in particular to an automobile steering device outer tubular column casing fixing clamp which comprises a left-right clamping assembly, an up-down clamping assembly and a driving assembly. According to the scheme, the left end, the right end, the upper end and the lower end of the outer tubular column barrel can be clamped only through rotation of the driving gear, axial movement and radial movement of the outer tubular column barrel are limited, the upper clamping assembly and the lower clamping assembly are moved to clamp the upper end and the lower end of the outer tubular column barrel, and the outer tubular column barrel can be rapidly and sufficiently clamped; when a driving motor controls a driving gear to rotate clockwise, a first moving plate and a second moving plate can be driven to slide in opposite directions, clamping heads on the first moving plate and the second moving plate are driven to get away from each other, and meanwhile, a wedge-shaped block is driven not to abut against a rotating rod upwards, so that clamping of the left end, the right end, the upper end and the lower end of an outer tubular column can be relieved; the process of clamping and releasing the outer tubular column casing is very simple and rapid, and the machining efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile steering gear production equipment, in particular to an automobile steering gear outer column tube fixing clamp. Background Art

[0002] The steering gear is a major component of a car, also known as a steering machine or a steering gear. It is one of the most important components in a car steering system and is used to increase the force transmitted from the steering wheel to the steering transmission mechanism and to change the direction of force transmission. The outer column tube outside the steering gear is an important component of the steering gear. When the steering gear is manufactured, the outer column tube of the automobile steering gear needs to be clamped for processing operations such as grooving and assembly. However, due to the complex structure of the outer column tube of the automobile steering gear, it is difficult to clamp it with a conventional clamp, and the clamping effect is not good. For example, CN201922476307.X discloses a fixing clamp for an automobile steering gear, which can limit the axial movement of the automobile steering gear (i.e., the outer column tube of the automobile steering gear) through a left clamp and a right clamp, and can limit the radial rotation of the steering gear through a support shell, but the radial movement of the outer column tube of the automobile steering gear is not sufficiently limited, and the overall clamping effect of the outer column tube of the automobile steering gear is not good. Moreover, the clamping and fixing process of the above-mentioned patent is relatively complicated, resulting in a long disassembly and assembly time before and after processing of the outer column of the automobile steering gear, which affects the processing efficiency.

[0003] Based on this, the applicant considered designing a fixing fixture for the outer column tube of the steering gear of an automobile that can quickly and fully clamp. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the utility model is: how to provide a fixing fixture for the outer column tube of an automobile steering gear that can quickly and fully clamp.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A fixing fixture for an outer column tube of an automobile steering gear, comprising left and right clamping assemblies, upper and lower clamping assemblies and a driving assembly;

[0007] The driving assembly comprises a first moving plate, a second moving plate, a driving gear and a driving motor for driving the driving gear to rotate, the first moving plate and the second moving plate are respectively slidably connected to opposite sides of the driving gear, and the first moving plate and the second moving plate have convex tooth surfaces meshing with the driving gear on one side facing the driving gear;

[0008] The left and right clamping assemblies include clamping heads fixedly connected to the first movable plate and the second movable plate respectively, the two clamping heads are used to abut against the two ends of the outer column tube, and a clamping space is formed between the two clamping heads;

[0009] The upper and lower clamping components include a wedge block fixedly connected to the first movable plate, and a receiving member and a rotating rod installed in the clamping space; the receiving member is fixedly arranged to receive the bottom end of the outer tubular column, the middle section of the rotating rod is rotatably arranged, the wedge block is used to press upward against one end of the rotating rod, and the other end of the rotating rod is used to contact the top end of the outer tubular column.

[0010] The working principle and advantages of the fixing fixture of the outer column tube of the automobile steering gear of this technical solution are:

[0011] The outer pipe column tube to be clamped is placed on the receiving piece in the clamping space, and then the driving motor in the driving assembly is started, and the driving motor controls the driving gear to rotate counterclockwise. Since the first movable plate and the second movable plate facing the driving gear have convex tooth surfaces that mesh with the driving gear, and the first movable plate and the second movable plate are respectively slidably connected to the opposite sides of the driving gear, when the driving gear rotates counterclockwise, it can drive the first movable plate and the second movable plate to slide, and drive the clamping heads fixedly connected to the first movable plate and the second movable plate to move closer to each other, so as to contact with the two ends of the outer pipe column tube on the receiving piece, so as to realize the left and right clamping assemblies on the left and right ends of the outer pipe column tube; a wedge block is also fixedly connected to the first movable plate, and when the first movable plate slides, it can drive the wedge block to move to abut against one end of the rotating rod upward. Since the middle section of the rotating rod is rotated, when the wedge block abuts against When the lever is in the unlocked position, the other end of the lever is moved downwards to engage with the top of the lever, thereby releasing the lever from the engagement of the lever with the other end.

[0012] Furthermore, the driving assembly includes a driving box, and the driving motor, the driving gear, the first movable plate and the second movable plate are all installed in the driving box.

[0013] Furthermore, the first movable plate and the second movable plate are respectively fixedly connected with a sliding rod fixedly connected to the clamping head, and the two opposite side walls of the driving box are respectively provided with sliding holes slidably connected to the sliding rod.

[0014] Furthermore, the left and right clamping assemblies also include a connecting plate, one end of which is fixedly connected to the sliding rod, and the other end of which is fixedly connected to the clamping head.

[0015] Furthermore, two spacer plates are fixedly connected to the top side of the driving box, two ends of the fixed shaft are respectively fixedly connected to the two spacer plates, and a rotating hole rotatably connected to the fixed shaft is opened in the middle of the rotating rod.

[0016] Furthermore, the rotating rod is used to contact the top end of the outer column tube, and one end is fixedly connected to a pressing head, and the other end is fixedly connected to a counterweight block.

[0017] Furthermore, a slot is provided on the top side of the driving box for the wedge block to extend and move.

[0018] Furthermore, the driving box and the receiving member are both fixedly mounted on the base.

[0019] Furthermore, the receiving member comprises two receiving blocks arranged at intervals, and the top sides of the receiving blocks are arranged as arc-shaped grooves.

[0020] Furthermore, the driving gear is horizontally arranged, and the first movable plate and the second movable plate are respectively located above and below the driving gear. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The three-dimensional structure of the fixing fixture of the outer column tube of the automobile steering gear of the utility model is shown in FIG. Figure 1 ;

[0022] Figure 2 The three-dimensional structure of the fixing fixture of the outer column tube of the automobile steering gear of the utility model is shown in FIG. Figure 2 ;

[0023] Figure 3 It is a right side cross-sectional structural schematic diagram of the drive box of the embodiment of the utility model;

[0024] Figure 4 This is a rear cross-sectional structural schematic diagram of a drive box according to an embodiment of the utility model;

[0025] In the above drawings: 100, base; 110, receiving block;

[0026] 200, drive box; 210, drive motor; 211, drive gear; 220, first movable plate; 221, extension plate; 222, wedge block; 230, second movable plate; 232, convex tooth surface; 241, upper support block; 242, lower support block; 251, slide bar; 252, connecting plate; 253, clamping head; 260, slot; 271, spacer plate; 272, fixed shaft; 280, rotating rod; 281, lower pressure head; 282, counterweight block; 290, limiting ring. DETAILED DESCRIPTION

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] Refer to Figure 1~Figure 4 , this embodiment provides a fixing fixture for an outer column tube of an automobile steering gear, which includes left and right clamping assemblies, upper and lower clamping assemblies, and a driving assembly;

[0029] The driving assembly includes a first moving plate 220, a second moving plate 230, a driving gear 211, and a driving motor 210 for driving the driving gear 211 to rotate. The first moving plate 220 and the second moving plate 230 are respectively slidably connected to two opposite sides of the driving gear 211. Both sides of the first moving plate 220 and the second moving plate 230 facing the driving gear 211 are convex tooth surfaces 232 meshing with the driving gear 211.

[0030] The left and right clamping assemblies include clamping heads 253 respectively fixedly connected to the first movable plate 220 and the second movable plate 230. The two clamping heads 253 are used to abut against the two ends of the outer pipe column, and a clamping space is formed between the two clamping heads 253.

[0031] The upper and lower clamping assemblies include a wedge block 222 fixedly connected to the first movable plate 220, and a receiving member and a rotating rod 280 installed in the clamping space; the receiving member is fixedly arranged to receive the bottom end of the outer tubular column, the middle section of the rotating rod 280 is rotatably arranged, the wedge block 222 is used to press upward against one end of the rotating rod 280, and the other end of the rotating rod 280 is used to contact the top end of the outer tubular column.

[0032] In this embodiment, the outer pipe column to be clamped is placed on the receiving member in the clamping space, and then the driving motor 210 in the driving assembly is started, and the driving motor 210 controls the driving gear 211 to rotate counterclockwise. Since the first moving plate 220 and the second moving plate 230 are facing the driving gear 211, both of the convex tooth surfaces 232 meshing with the driving gear 211, and the first moving plate 220 and the second moving plate 230 are respectively slidably connected to the opposite sides of the driving gear 211, the driving gear 211 rotates counterclockwise. When rotating, the first movable plate 220 and the second movable plate 230 can be driven to slide, and the clamping heads 253 respectively fixedly connected to the first movable plate 220 and the second movable plate 230 can be driven to move closer to each other, so as to contact with the two ends of the outer pipe column on the receiving member, so as to realize the clamping of the left and right clamping assemblies on the left and right ends of the outer pipe column; the first movable plate 220 is also fixedly connected with a wedge block 222, and when the first movable plate 220 slides, it can drive the wedge block 222 to move to one end of the rotating rod 280 upwardly, because the rotating rod 28 0 The middle section is rotatable, so when the wedge block 222 presses against one end of the rotating rod 280 upward, one end of the rotating rod 280 can be lifted, and the other end can be moved down to contact the top of the outer pipe column on the receiving part, so that the upper and lower clamping components can clamp the upper and lower ends of the outer pipe column; this scheme can clamp the left and right ends and the upper and lower ends of the outer pipe column only by rotating the driving gear 211, limit the axial movement and radial movement of the outer pipe column, and move the upper and lower clamping components to clamp the upper and lower ends of the outer pipe column, so as to quickly and fully The outer tubular column is clamped; when the driving motor 210 controls the driving gear 211 to rotate clockwise, it can drive the first movable plate 220 and the second movable plate 230 to slide in opposite directions, drive the clamping heads 253 on the first movable plate 220 and the second movable plate 230 to move away from each other, and at the same time drive the wedge block 222 no longer to press upward against the rotating rod 280, so that the clamping of the left and right ends and the upper and lower ends of the outer tubular column can be released. The process of clamping and releasing the clamping of the outer tubular column is simple and fast, which can improve the processing efficiency.

[0033] Preferably, if Figure 1~Figure 4 As shown, the driving assembly includes a driving box 200, and a driving motor 210, a driving gear 211, a first movable plate 220 and a second movable plate 230 are all installed in the driving box 200; the driving box 200 can shield and protect the components therein.

[0034] Preferably, if Figure 1~Figure 4As shown, the first movable plate 220 and the second movable plate 230 are respectively fixedly connected with a sliding rod 251 fixedly connected to the clamping head 253, and the two opposite side walls of the driving box 200 are respectively provided with sliding holes slidably connected to the sliding rod 251; the first movable plate 220 is slidably installed in the driving box 200 through the cooperation of the upper sliding rod 251 and the upper sliding hole of the driving box 200. Specifically, the two opposite side walls of the driving box 200 are also respectively fixedly connected with limiting rings 290 corresponding to the sliding, so that the sliding rod 251 is slidably connected in the sliding hole and the limiting ring 290, so that the sliding of the sliding rod 251 is more stable; more specifically, the first movable plate 220 and the second movable plate 230 are both L-shaped.

[0035] Preferably, if Figure 1~Figure 4 As shown, the left and right clamping assemblies also include a connecting plate 252, one end of the connecting plate 252 is fixedly connected to the slide rod 251, and the other end is fixedly connected to the clamping head 253; the clamping head 253 is fixedly connected to the first movable plate 220 or the second movable plate 230 through the slide rod 251 and the connecting plate 252.

[0036] Preferably, if Figure 1~Figure 4 As shown, two spacer plates 271 are fixedly connected to the top side of the drive box 200, and both ends of the fixed shaft 272 are fixedly connected to the two spacer plates 271 respectively. A rotating hole rotatably connected to the fixed shaft 272 is opened in the middle of the rotating rod 280; thereby, the rotating connection of the middle section of the rotating rod 280 is realized, and the rotating rod 280 is installed on the drive box 200, thereby improving the integrity of the fixing fixture.

[0037] Preferably, if Figure 1 and Figure 2 As shown, the rotating rod 280 is used to contact the top of the outer tubular column, one end of which is fixedly connected to a downward pressure head 281 and the other end of which is fixedly connected to a counterweight block 282; the rotating rod 280 contacts the top of the outer tubular column through the downward pressure head 281, and when the end of the rotating rod 280 connected to the counterweight block 282 is not pressed upward by the wedge block 222, the counterweight block 282 can drive the end of the rotating rod 280 connected thereto to move downward, so that the end of the rotating rod 280 connected to the downward pressure head 281 automatically tilts up, making it convenient to place the outer tubular column on the receiving member.

[0038] Preferably, if Figure 1~Figure 4 As shown, a slot 260 is provided on the top side of the drive box 200 for the wedge block 222 to extend and move; an extension plate 221 is fixedly connected to the first movable plate 220, and the wedge block 222 passes through the slot 260 and is fixedly connected to the extension plate 221, so that the wedge block 222 is fixedly connected to the first movable plate 220 in the drive box 200.

[0039] Preferably, if Figure 1~Figure 2 As shown, the driving box 200 and the receiving member are both fixedly mounted on the base 100, further improving the integrity of the fixing fixture.

[0040] Preferably, if Figure 1~Figure 4 As shown, the receiving part includes two receiving blocks 110 arranged at intervals, and the top side of the receiving block 110 is arranged as an arc-shaped groove; the main part of the outer tubular column is a round tube, and the two receiving blocks 110 arranged at intervals and having arc-shaped grooves on the top side can stably receive the outer tubular column; specifically, the parts of the receiving blocks 110, the clamping head 253 and the pressing head 281 that contact the outer tubular column can be provided with rubber pads to make the contact between the receiving blocks 110, the clamping head 253 and the pressing head 281 and the outer tubular column closer, while avoiding scratches on the outer tubular column.

[0041] Preferably, if Figure 3 and Figure 4 As shown, the driving gear 211 is horizontally arranged, and the first movable plate 220 and the second movable plate 230 are respectively located above and below the driving gear 211; the layout is reasonable, and the thickness of the driving box 200 can be reduced. Of course, the driving gear 211 can also be vertically arranged, and the first movable plate 220 and the second movable plate 230 are respectively located in front of and behind the driving gear 211; specifically, the driving gear 211 is horizontally arranged, and the two limiting rings 290 are arranged on the two inner side walls opposite to each other on the left and right sides of the driving box 200, and the two inner side walls opposite to each other on the upper and lower sides of the driving box 200 are respectively fixedly connected with the upper support blocks 24 1 and the lower support block 242, the upper support block 241 contacts the top side of the first movable plate 220 to improve the upper support for the first movable plate 220, and the lower support block 242 contacts the bottom side of the second movable plate 230 to improve the lower support for the second movable plate 230, so that the movement of the first movable plate 220 and the second movable plate 230 is more stable; more specifically, the convex tooth surface 232 includes a plurality of convex teeth spaced apart on the first movable plate 220 or the second movable plate 230, the drive motor 210 is fixedly installed in the drive box 200, and the output shaft of the drive motor 210 is directly fixedly connected to the drive gear 211.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. Automobile steering gear outer column fixing fixture, characterized by: It includes left and right clamping components, upper and lower clamping components and driving components; The driving assembly includes a first movable plate, a second movable plate, a driving gear, and a driving motor for driving the driving gear to rotate, wherein the first movable plate and the second movable plate are respectively slidably connected to opposite sides of the driving gear, and the sides of the first movable plate and the second movable plate facing the driving gear both have convex tooth surfaces that mesh with the driving gear; The left and right clamping assemblies include clamping heads fixedly connected to the first movable plate and the second movable plate respectively, the two clamping heads are used to abut against the two ends of the outer column, and a clamping space is formed between the two clamping heads; The upper and lower clamping components include a wedge-shaped block fixedly connected to the first movable plate, and a receiving member and a rotating rod installed in the clamping space; the receiving member is fixedly arranged to receive the bottom end of the outer tubular column, the middle section of the rotating rod is rotatably arranged, the wedge-shaped block is used to abut against one end of the rotating rod upward, and the other end of the rotating rod is used to abut against the top end of the outer tubular column; The driving assembly includes a driving box, and the driving motor, the driving gear, the first movable plate and the second movable plate are all installed in the driving box; Two spacer plates are fixedly connected to the top side of the drive box, and both ends of the fixed shaft are fixedly connected to the two spacer plates respectively. A rotating hole is opened in the middle of the rotating rod to be rotatably connected to the fixed shaft. A slot for the wedge block to extend and move is provided on the top side of the driving box.

2. The automobile steering gear outer column fixing fixture according to claim 1, characterized in that: The first movable plate and the second movable plate are respectively fixedly connected to a sliding rod fixedly connected to the clamping head, and two opposite side walls of the driving box are respectively provided with sliding holes slidably connected to the sliding rod.

3. The automobile steering gear outer column fixing fixture according to claim 2, characterized in that: The left and right clamping assemblies further include a connecting plate, one end of which is fixedly connected to the sliding rod, and the other end of which is fixedly connected to the clamping head.

4. The automobile steering gear outer column fixing fixture according to claim 1, characterized in that: The rotating rod is used to contact the top end of the outer pipe column, one end of which is fixedly connected to a pressing head, and the other end of which is fixedly connected to a counterweight block.

5. The automobile steering gear outer column fixing fixture according to claim 1, characterized in that: The driving box and the receiving member are both fixedly mounted on the base.

6. The automobile steering gear outer column fixing fixture according to claim 5, characterized in that: The receiving member includes two receiving blocks arranged at intervals, and the top sides of the receiving blocks are arranged as arc-shaped grooves.

7. The automobile steering gear outer column fixing fixture according to claim 1, characterized in that: The driving gear is arranged horizontally, and the first movable plate and the second movable plate are respectively located above and below the driving gear.

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