Clamp for engine exhaust pipe paint spraying

Abstract

The utility model relates to the field of automobile part production equipment, and discloses an engine exhaust pipe paint spraying clamp which comprises a mechanical arm, two wrist assemblies and two clamping assemblies, and two telescopic arms with the telescopic directions perpendicular to each other are arranged at the end of the mechanical arm. The two wrist assemblies are arranged at the free ends of the telescopic arms in the mode that the wrist assemblies can rotate around the vertical axes respectively. The two clamping assemblies are arranged on the wrist assembly, and each clamping assembly is internally provided with a horizontally-extending clamping cavity. When the clamp for paint spraying of the engine exhaust pipe is used for clamping different engine air inlet pipes, clamping of the air inlet pipes with different bending degrees and port included angles can be conveniently achieved through stretching out and drawing back of the telescopic arm and rotation of the wrist assembly, and the compatibility of the clamp is improved.

Description

Technical Field

[0001] The utility model relates to the field of automobile parts production equipment, in particular to a clamp for painting an engine exhaust pipe. Background Art

[0002] The engine intake pipe is a dedicated channel for the intake of automobile engines. The shape of the intake pipe varies depending on the brand, type and overall design of the automobile. For example, the curvature of the intake pipe of different automobiles and the angle between the axes of the two ports are different. Therefore, the existing engine exhaust pipe painting fixtures are all dedicated fixtures for intake pipes of a certain specification and are not universal. Utility Model Content

[0003] The utility model aims to overcome the disadvantages of the background technology and provide a clamp for painting an engine exhaust pipe.

[0004] The embodiments of the present invention are implemented by the following technical solutions:

[0005] A fixture for painting an engine exhaust pipe, comprising:

[0006] A manipulator, the ends of which are provided with two sets of telescopic arms with telescopic directions perpendicular to each other;

[0007] Two groups of wrist assemblies, each of the two groups of wrist assemblies being rotatably disposed around a group of vertical axes at a free end of a group of telescopic arms; and

[0008] Two groups of clamping components are respectively arranged on one group of wrist components, and each group of clamping components has a group of horizontally extending clamping cavities.

[0009] Further, the wrist assembly comprises a vertical plate and a bottom plate which are perpendicular to each other, wherein the clamping assembly is mounted on the bottom plate;

[0010] The vertical plate is provided with a first circular hole and a plurality of second circular holes arranged in a circular array around the first circular hole; a rotating shaft is provided in the first circular hole and a group of threaded pins are passed through any group of the second circular holes, and the rotating shaft and the threaded pins are both installed on the telescopic arm.

[0011] Furthermore, the rotating shaft and the threaded pin are both provided with nuts to lock the vertical plate.

[0012] Furthermore, a flattened portion is provided on the outer wall of the telescopic arm, the rotating shaft and the threaded pin are both vertically arranged on the flattened portion, and the flattened portion is in contact with the vertical plate.

[0013] Furthermore, the clamping assembly includes a clamping barrel and a support seat for fixing the clamping barrel, and the support seat is detachably connected to the bottom plate by bolts;

[0014] A group of cylindrical first clamping members and second clamping members are respectively provided at the two end portions of the chuck; the first end of the first clamping member is provided at the end portion of the chuck, and a plurality of slits are provided on the outer wall of the second end of the first clamping member; the second clamping member is sleeved on the first clamping member, and the inner wall of the first end of the second clamping member is threadedly connected to the outer wall of the first end of the first clamping member, and the inner diameter of the second clamping member gradually decreases from the middle portion of the second clamping member to the second end portion.

[0015] Further, the first clamping member includes an inner sleeve ring and an inner cone ring, the second clamping member includes the outer sleeve ring and an outer cone ring arranged at the end of the outer sleeve ring, the first end of the inner sleeve ring is connected to the end of the chuck, the inner cone ring is connected to the second end of the inner sleeve ring, the outer wall of the inner cone ring is wedge-shaped, and the notch is provided on the inner cone ring; the outer sleeve ring is threadedly connected to the inner sleeve ring, and the inner wall of the outer cone ring is in contact with the outer wall of the inner cone ring.

[0016] Furthermore, the support seat and the base plate are two sets of flange plates.

[0017] Furthermore, the threaded pin is threadedly connected to the flat portion.

[0018] The technical solution of the embodiment of the utility model has at least the following advantages and beneficial effects:

[0019] In the engine exhaust pipe painting clamp of the utility model, two groups of telescopic arms are arranged on the manipulator, and the free end of each group of telescopic arms is rotatably connected to a group of wrist components, and the clamping components are installed on the wrist components. When clamping different engine intake pipes, the intake pipes with different bending degrees and port angles can be conveniently clamped by extending and retracting the telescopic arms and rotating the wrist components, thereby improving the compatibility of the clamp; at the same time, the clamp can reduce the coverage of the outer surface of the exhaust pipe, so that the outer surface of the exhaust pipe can be painted more comprehensively. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front view of the fixture for painting the engine exhaust pipe of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the clamping assembly of the utility model;

[0022] Figure 3 It is a structural schematic diagram of the second clamping member of the utility model;

[0023] Figure 4 It is a schematic diagram of the connection relationship between the wrist assembly and the telescopic arm of the utility model;

[0024] Figure 5 This is a schematic diagram of the structure of a wrist assembly in one embodiment of the utility model;

[0025] Icons: 1-manipulator, 10-telescopic arm, 100-flat part, 110-rotating shaft, 120-threaded pin, 2-clamp, 200-support seat, 201-bolt, 210-clamping cavity, 220-first clamping piece, 221-inner sleeve, 222-inner conical ring, 223-gap, 230-second clamping piece, 231-outer sleeve, 232-outer conical ring, 3-wrist assembly, 300-base plate, 301-mounting hole, 310-vertical plate, 311-first circular hole, 312-second circular hole, 330-nut, 4-inlet pipe. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0027] Reference Figures 1 to 4 The utility model discloses a clamp for an engine air intake pipe 4, comprising a manipulator 1, two groups of wrist components 3 and two groups of clamping components.

[0028] Among them, refer to Figure 1 Two groups of telescopic arms 10 are provided at the end of the manipulator 1, and the telescopic directions of the two groups of telescopic arms 10 are perpendicular to each other; the telescopic arms 10 can be cylinders, and the free end of each group of telescopic arms 10 is provided with a group of wrist components 3, and each group of wrist components 3 is provided with a group of clamping components, and each group of clamping components has a group of horizontally extending clamping cavities 210.

[0029] Reference Figure 5 , wherein the wrist assembly 3 includes a vertical plate 310 and a bottom plate 300 which are perpendicular to each other, and the clamping assembly is installed on the bottom plate 300.

[0030] Among them, refer to Figure 4 and Figure 5 A first circular hole 311 and a plurality of second circular holes 313 arranged in a circular array around the first circular hole 311 are provided on the vertical plate 310, a rotating shaft 110 is threaded through the first circular hole 311, and a group of threaded pins 120 are threaded through any group of the second circular holes 313, wherein the rotating shaft 110 and the threaded pins 120 are both installed on the telescopic arm 10, and nuts 330 are provided on the rotating shaft 110 and the threaded pins 120 to lock the vertical plate 310 on the telescopic arm 10.

[0031] In addition, refer to Figure 4A flat portion 100 is provided on the outer wall of the telescopic arm 10 , the rotating shaft 110 and the threaded pin 130 are both vertically arranged on the flat portion 100 , the flat portion 100 is in contact with the surface of the vertical plate 310 , and the threaded pin 120 passes through the second circular hole 312 and is threadedly connected in the flat portion 100 .

[0032] Among them, a plurality of mounting holes 301 are opened on the base plate 300 for passing bolts, and the clamping assembly includes a clamping tube 2 and a support base 200. The support base 200 and the base plate 300 are two sets of flange plates. The bolts 201 on the support base 200 are inserted into the mounting holes 301 on the base plate 300, so as to realize a detachable connection between the clamping assembly and the wrist assembly 3.

[0033] By passing the threaded pins 120 through different second through holes 312 , locking of the wrist assembly 3 after rotation can be achieved.

[0034] Reference Figure 2 and Figure 3 A group of first clamping members 220 and second clamping members 230 are respectively provided at both ends of the clamping sleeve 2 of the clamping assembly, wherein the first clamping member 220 includes an inner sleeve ring 221 and an inner conical ring 222, and the second clamping member 230 includes an outer sleeve ring 231 and an outer conical ring 232 provided at the end of the outer sleeve ring 231.

[0035] Among them, the first end of the inner ring 221 is connected to the end of the chuck 2, the inner conical ring 222 is connected to the second end of the inner ring 221, the outer wall of the inner conical ring 222 is a wedge-shaped structure, and a plurality of slits 223 are arranged on the inner conical ring 222 around the axis. The outer ring 231 is threadedly connected to the inner ring 221, and the inner wall of the outer conical ring 232 is in contact with the outer wall of the inner conical ring 222.

[0036] Among them, a plurality of notches 223 on the inner conical ring 222 extend from the second end of the first clamping member 220 to the first end of the first clamping member 220, and the extension depth is approximately more than half of the length from the first end to the second end of the first clamping member 220. The inner diameter of the first clamping member 220 is larger than the outer diameter of the intake pipe 4; the second clamping member 230 is sleeved on the first clamping member 220, and the inner wall of the first end of the second clamping member 230 is provided with an internal thread, and the outer wall of the first end of the first clamping member 220 is provided with an external thread. The first end of the second clamping member 230 is threadedly connected to the first end of the first clamping member 220. In addition, the inner diameter of the second clamping member 220 gradually decreases from the middle of the second clamping member 220 to the second end.

[0037] When the air intake pipe 4 is inserted into the clamp 2, the first clamp 220 is sleeved on the air intake pipe 4, and the second clamp 230 is tightened. The inner wall of the second clamp 230 gradually squeezes the second end of the first clamp 220, so that the air intake pipe 4 is clamped.

[0038] Preferably, the first clamping member 220 includes an inner ring 221 and an inner conical ring 222, and the second clamping member 230 includes an outer ring 231 and an outer conical ring 232 arranged at the end of the outer ring 231, wherein the first end of the inner ring 221 is connected to the end of the clamp 2, the inner diameter of the inner ring 221 is slightly larger than the outer diameter of the intake pipe 4, and the inner conical ring 222 is connected to the second end of the inner ring 221; the outer wall of the inner conical ring 222 is wedge-shaped, and the minimum inner diameter of its end is slightly smaller than the outer diameter of the intake pipe 4, and the notch 223 is provided on the inner conical ring 222; the outer ring 231 is threadedly connected to the inner ring 231, and the inner wall of the outer conical ring 232 fits against the outer wall of the inner conical ring 222. When in use, the outer wall of the intake pipe 4 first slightly stretches the inner conical ring 222, so that the inner conical ring 222 initially clamps the intake pipe 4, and the outer conical ring 232 further squeezes the intake pipe 4 during the extrusion process, and the clamping effect is better.

[0039] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A fixture for painting an engine exhaust pipe, characterized in that: include: A manipulator, the ends of which are provided with two sets of telescopic arms with telescopic directions perpendicular to each other; Two groups of wrist assemblies, each of the two groups of wrist assemblies being rotatably disposed around a group of vertical axes at a free end of a group of telescopic arms; and Two groups of clamping components are respectively arranged on one group of wrist components, and each group of clamping components has a group of horizontally extending clamping cavities.

2. The engine exhaust pipe painting fixture according to claim 1, characterized in that: The wrist assembly comprises a vertical plate and a bottom plate which are perpendicular to each other, wherein the clamping assembly is mounted on the bottom plate; The vertical plate is provided with a first circular hole and a plurality of second circular holes arranged in a circular array around the first circular hole; a rotating shaft is provided in the first circular hole and a group of threaded pins are passed through any group of the second circular holes, and the rotating shaft and the threaded pins are both installed on the telescopic arm.

3. The engine exhaust pipe painting fixture according to claim 2, characterized in that: The rotating shaft and the threaded pin are both provided with nuts to lock the vertical plate.

4. The engine exhaust pipe painting fixture according to claim 3, characterized in that: A flattened portion is provided on the outer wall of the telescopic arm, the rotating shaft and the threaded pin are both vertically arranged on the flattened portion, and the flattened portion is in contact with the vertical plate.

5. The engine exhaust pipe painting fixture according to claim 2, characterized in that: The clamping assembly includes a clamping barrel and a support seat for fixing the clamping barrel, and the support seat is detachably connected to the base plate by bolts; A group of cylindrical first clamping members and second clamping members are respectively provided at the two end portions of the chuck; the first end of the first clamping member is provided at the end portion of the chuck, and a plurality of slits are provided on the outer wall of the second end of the first clamping member; the second clamping member is sleeved on the first clamping member, and the inner wall of the first end of the second clamping member is threadedly connected to the outer wall of the first end of the first clamping member, and the inner diameter of the second clamping member gradually decreases from the middle portion of the second clamping member to the second end portion.

6. The engine exhaust pipe painting fixture according to claim 5, characterized in that: The first clamping member includes an inner sleeve ring and an inner cone ring, and the second clamping member includes an outer sleeve ring and an outer cone ring arranged at the end of the outer sleeve ring. The first end of the inner sleeve ring is connected to the end of the chuck, and the inner cone ring is connected to the second end of the inner sleeve ring. The outer wall of the inner cone ring is wedge-shaped, and the notch is provided on the inner cone ring; the outer sleeve ring is threadedly connected to the inner sleeve ring, and the inner wall of the outer cone ring fits against the outer wall of the inner cone ring.

7. The engine exhaust pipe painting fixture according to claim 5, characterized in that: The support seat and the bottom plate are two sets of flange plates.

8. The engine exhaust pipe painting fixture according to claim 4, characterized in that: The threaded pin is threadedly connected to the flat portion.

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