Positioning and mounting device for transmission shaft

Abstract

The utility model discloses a transmission shaft positioning installation device which comprises a controller, a machine frame, a first positioning supporting seat, a second positioning supporting seat, a clamping assembly, a driving mechanism, a vertical plate and a limiting baffle, the vertical plate is provided with a guide rail along the machine frame, a sliding block is installed on the guide rail in a sliding mode, and a limiting seat is installed on the sliding block. The limiting block is rotationally connected to the limiting base through a pin, the upper end of the limiting block is provided with a limiting contact making contact with the limiting check block, and the limiting contact is provided with a sensor. When a limiting contact of the limiting assembly makes contact with a limiting baffle arranged on the first positioning and supporting seat, a sensor on the limiting assembly sends a pressure signal sensed by the sensor to the controller, the controller receives the pressure signal from the sensor, the controller stops working of the driving mechanism, and the first supporting and positioning seat is prevented from continuing to move; damage such as dents caused by excessive pressure on the limiting baffle plate is avoided, and meanwhile, a piston rod of the driving mechanism is also protected.

Description

Technical Field

[0001] The utility model relates to the technical field of transmission shafts, in particular to a positioning and mounting device for transmission shafts. Background Art

[0002] The drive shaft is the shaft in the universal joint transmission that can transmit power. It is a high-speed, low-support rotating body, so its dynamic balance is very important. Generally, the drive shaft must undergo a dynamic balance test before leaving the factory and be adjusted on a balancing machine. For front-engine, rear-wheel drive vehicles, it is the shaft that transmits the rotation of the transmission to the main reducer. It can have several sections, and the sections can be connected by universal joints.

[0003] In the process of equipment manufacturing and processing, the assembly process of parts and components is an indispensable key step. On the one hand, the efficiency of parts and components assembly has a vital impact on the production efficiency of the entire production line. On the other hand, the assembly quality of parts and components is one of the determining factors of the equipment yield rate. At present, in the actual production process, the parts of automobile drive shafts are usually assembled manually throughout the process, which has the disadvantages of low efficiency, high degree of dependence on manual labor, and poor assembly consistency affecting the yield rate. The production method of manually assembling equipment parts and components cannot meet the needs of large-scale industrial production. In addition, the number of parts used in the drive shaft of domestic automobiles is large, the models are diverse, the assembly cost is high, and the assembly efficiency is low. In the assembly process, there is a tendency for insufficient assembly precision, which can easily cause tolerance accumulation and is not conducive to the control of installation precision.

[0004] In view of this, the inventor of this case conducted in-depth research on the above-mentioned issues, which resulted in this case. Utility Model Content

[0005] The utility model aims to provide a transmission shaft positioning and installation device which has a simple structure and can improve work efficiency.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solution:

[0007] A positioning and installation device for a transmission shaft comprises a controller, a frame, a first positioning support seat and a second positioning support seat arranged on the frame, a clamping assembly arranged between the first positioning support seat and the second positioning support seat, and a driving mechanism for driving the first positioning support seat to move in a direction close to or away from the second positioning support seat, wherein the driving end of the driving mechanism is fixedly connected to the first positioning support seat, and further comprises a limiting assembly for limiting the movement of the first positioning support seat, wherein the limiting assembly comprises a vertical plate fixedly arranged on the frame and a limiting baffle fixedly arranged on the first positioning support seat, wherein the limiting baffle extends in the direction of the vertical plate, wherein the vertical plate is provided with a guide rail along the length direction of the frame, wherein a slider is slidably installed on the guide rail, wherein the slider slides along the length direction of the guide rail, wherein a limiting seat is installed on the slider, wherein a limiting block is installed at a side wall of the limiting seat by a pin, wherein the limiting block is rotatably connected to the limiting seat by the pin, wherein an upper end of the limiting block is provided with a limiting contact contacting with the limiting baffle, wherein a sensor is provided on the limiting contact.

[0008] As a preferred embodiment of the present invention, there are two guide rails, and the slider is arranged on the two guide rails by bolts.

[0009] As a preferred embodiment of the utility model, the limit seat is provided with a through groove for the limit block to pass through, and the width of the through groove is greater than the width of the limit block, the limit block passes through the through groove and is hinged to the limit seat through the pin, and the limit block is swingably connected in the through groove through the pin.

[0010] As a preferred embodiment of the present invention, the limiting block is provided with a waist-shaped groove along the vertical direction, and the pin passes through the waist-shaped groove to be connected with the limiting seat.

[0011] As a preferred embodiment of the present invention, the limit contact is a rubber wheel arranged on the top of the limit block, and the rubber wheel is rotatably arranged on the end of the limit block.

[0012] As a preferred embodiment of the utility model, the clamping assembly includes a clamping seat and a clamping mechanism arranged on the clamping seat, the clamping mechanism includes a first clamping piece, a second clamping piece, a guide column, a support plate, an eccentric block and a handle, a clamping space for clamping a workpiece is formed between the first clamping piece and the second clamping piece, the guide column is fixed to the clamping seat in a vertical direction, the second clamping piece can be slidably mounted on the guide column up and down, the support plate is fixed to the clamping seat in a vertical direction, the eccentric block is rotatably mounted on the support plate through a support shaft, the handle is arranged on the support shaft, the eccentric block is arranged corresponding to the second clamping piece, the eccentric block has a pressing part that can press the second clamping piece and limit the movement of the second clamping piece by rotating the eccentric block, and a releasing part that can release the second clamping piece by rotating the eccentric block, a reset spring is arranged between the second clamping piece and the clamping seat, a guide pin is arranged on the clamping seat, and the reset spring is sleeved on the guide pin.

[0013] As a preferred embodiment of the utility model, the eccentric block has a first plane, a second plane, a first connecting surface and a second connecting surface. The first plane is arranged parallel to the second plane. The two ends of the first connecting surface are respectively connected to the first plane and the second plane. The first connecting surface is perpendicular to the first plane. The second connecting surface is an arc-shaped surface. The first plane is the pressing portion, and the second connecting surface is the releasing portion.

[0014] As a preferred embodiment of the utility model, the clamping assembly includes a clamping seat and a clamping mechanism arranged on the clamping seat, the clamping assembly includes a first clamping piece, a second clamping piece and a bidirectional cylinder, the clamping seat is provided with a groove for sliding the first clamping piece and the second clamping piece, the length of the groove is greater than the sum of the length of the first clamping piece and the length of the second clamping piece, the cylinder body of the bidirectional cylinder is arranged on the clamping seat, the telescopic rods at both ends of the bidirectional cylinder are fixedly connected to the first clamping piece and the second clamping piece respectively, and the bidirectional cylinder drives the first clamping piece and the second clamping piece to move closer to or away from each other.

[0015] As a preferred embodiment of the utility model, the clamping assembly is divided into two groups, namely a first clamping assembly and a second clamping assembly. The frame is provided with a slide rail along the horizontal direction. The second positioning support seat, the first clamping assembly, the second clamping assembly and the first positioning support seat can all be slidably arranged on the slide rail.

[0016] As a preferred embodiment of the utility model, the opposite end faces of the first clamping member and the second clamping member are provided with arc grooves, the surface of the arc groove is provided with rubber pads, the surface of the rubber pads is uneven, and the friction with the workpiece is increased by the rubber pads.

[0017] By adopting the above-mentioned design scheme, the beneficial effect of the utility model is: when the limit contact of the limit assembly contacts the limit baffle set on the first positioning support seat, the sensor on the limit assembly sends the sensed pressure signal to the controller, the controller receives the pressure signal from the sensor, and the controller suspends the operation of the driving mechanism to prevent the first support positioning seat from continuing to move, and avoid the limit baffle being subjected to excessive pressure to cause dents and other damages, while also protecting the piston rod of the driving mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a structural schematic diagram of a clamping assembly in the utility model;

[0020] Figure 3 It is a structural schematic diagram of another clamping assembly in the utility model;

[0021] Figure 4 It is a structural schematic diagram of the limit assembly in the utility model;

[0022] In the figure: first positioning support seat 1, U-shaped groove 11, socket 12, second positioning support seat 2, positioning hole 21, first clamping assembly 31, clamping seat 310, groove 3101, first clamping member 311, arc groove 3111, rubber pad 3112, second clamping member 312, guide column 313, support plate 314, eccentric block 315, first plane 3151, second plane 3152, first connecting surface 3153, second connecting surface 3154, handle 316 , bidirectional cylinder 316', support shaft 317, return spring 318, guide pin 319, second clamping assembly 32, limit assembly 4, vertical plate 41, guide rail 411, limit baffle 42, slider 43, through groove 441, limit seat 44, pin 45, limit block 46, waist-shaped groove 461, rubber wheel 47, drive mechanism 5, third support seat 6, guide hole 61, first transmission shaft 71, second transmission shaft 72, movable shaft 73, frame 10, slide rail 101. DETAILED DESCRIPTION

[0023] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Reference Figures 1 to 4

[0025] A positioning and installation device for a transmission shaft, including a controller (not shown in the figure), a frame 10, a first positioning support seat 1 for fixing a first transmission shaft 71 and a second positioning support seat 2 for fixing a second transmission shaft 72, arranged on the frame 10, a clamping assembly arranged between the first positioning support seat 1 and the second positioning support seat 2 (in this embodiment, the clamping assembly is 2 groups, namely a first clamping assembly 31 and a second clamping assembly 32), a limiting assembly 4 for limiting the movement of the first positioning support seat 1, and a driving mechanism 5 for driving the first positioning support seat 1 to move in a direction close to or away from the second positioning support seat 2, the driving end of the driving mechanism 5 is fixedly connected to the first positioning support seat 1, and the driving mechanism 5 and the second positioning support seat 2 are respectively arranged at the two ends of the frame 10. In this embodiment, the driving mechanism 5 drives the first positioning support seat 1 to move closer to or away from the second positioning support seat 2. When the limit contact (which will be described in detail below) of the limit component 4 contacts the limit baffle 42 (which will be described in detail below) arranged on the first positioning support seat 1, the sensor (not shown in the figure) on the limit component 4 sends the sensed pressure signal to the controller. The controller receives the pressure signal from the sensor, and the controller suspends the operation of the driving mechanism 5 to prevent the first support positioning seat 1 from continuing to move, and to prevent the limit baffle 42 from being subjected to excessive pressure and causing dents and other damages, while also protecting the piston rod of the driving mechanism 5.

[0026] The frame 10 is provided with a slide rail 101 along the horizontal direction, the first clamping assembly 31 and the second clamping assembly 32 can be slidably arranged on the slide rail 101, the axis of the piston rod of the driving mechanism 5 is arranged along the horizontal direction, the first positioning support seat 1 is fixedly arranged on the end of the piston rod of the driving mechanism 5, the first positioning support seat 1 is provided with a U-shaped groove 11, and the U-shaped groove 11 is provided with a socket 12. When working, the movable shaft 73 is inserted into the mounting hole of the first transmission shaft 71, and the movable shaft 73 is pressed against the socket 12 of the U-shaped groove 11. The first transmission shaft 71 is arranged corresponding to the first positioning support seat 1, and the second transmission shaft 72 is arranged corresponding to the second positioning support seat 2. In the present utility model, the second positioning support seat 2 is arranged corresponding to the fork portion of the second transmission shaft 72, and is used for stably placing the second transmission shaft 72. The second positioning support seat 2 is provided with a positioning hole 21 for the second transmission shaft 72 to pass through, and the axis of the positioning hole 21 is arranged along the horizontal direction. After the second transmission shaft 72 is placed on the second positioning support seat 2, the second transmission shaft 72 is fixedly connected to the positioning hole 21, thereby realizing the limiting of the second transmission shaft 72. The first positioning support seat 1 is driven by the driving mechanism 5 to drive the first transmission shaft 71 to move in the direction of the second positioning support seat 2, thereby realizing the connection between the first transmission shaft 71 and the second transmission shaft 72.

[0027] Furthermore, a third support seat 6 is fixed on the frame 10 , and a guide hole 61 is provided on the third support seat 6 . The axis of the guide hole 61 is arranged along the horizontal direction, and the driving end of the driving mechanism 5 is slidably arranged in the guide hole 61 .

[0028] Furthermore, the first clamping assembly 31 and the second clamping assembly 32 each include a clamping seat 310 and a clamping mechanism disposed on the clamping seat 310, the clamping mechanism including a first clamping piece 311, a second clamping piece 312, a guide post 313, a support plate 314, an eccentric block 315 and a handle 316, a clamping space for clamping the first transmission shaft 71 is formed between the first clamping piece 311 and the second clamping piece 312, the guide post 313 is fixed on the clamping seat 310 in a vertical direction, the second clamping piece 312 is slidably mounted on the guide post 313 up and down, and the support plate 314 is fixed on the clamping seat 310 in a vertical direction. The eccentric block 315 is rotatably mounted on the support plate 314 through a support shaft 317, the handle 316 is arranged on the support shaft 317, the eccentric block 315 is arranged corresponding to the second clamping member 312, the eccentric block 315 has a pressing portion that can press the second clamping member 312 and limit the movement of the second clamping member 312 by rotating the eccentric block 315, and a releasing portion that can release the second clamping member 312 by rotating the eccentric block 315, a reset spring 318 is provided between the second clamping member 312 and the clamping seat 310, a guide pin 319 is provided on the clamping seat 310, and the reset spring 318 is sleeved on the guide pin 319.

[0029] Furthermore, the eccentric block 315 has a first plane 3151, a second plane 3152, a first connecting surface 3153 and a second connecting surface 3154. The first plane 3151 is arranged in parallel with the second plane 3152. The two ends of the first connecting surface 3153 are respectively connected to the first plane 3151 and the second plane 3152. The first connecting surface 3153 is perpendicular to the first plane 3151. The second connecting surface 3154 is an arc-shaped surface. The first plane 3151 is a pressing portion, and the second connecting surface 3154 is a releasing portion. When in use, the first transmission shaft 71 equipped with the movable shaft 73 is placed between the first clamping member 311 and the second clamping member 312, and the handle 316 is rotated to make the second plane 3152 of the eccentric block 315 press against the second clamping member 312. At this time, the first connecting surface 3153 is in a position perpendicular to the second clamping member 312, and the second clamping member 312 cannot continue to move upward. By rotating the handle 316, the second plane 3152 leaves the upper surface of the second clamping member 312 (the second connecting surface 3154 slides on the second clamping member 312 and leaves the second clamping member 312), and the second clamping member 312 moves upward and presses against the second connecting surface 3154 under the action of the reset spring 318. The second clamping member 312 moves upward to loosen the first transmission shaft 71 between the first clamping member 311 and the second clamping member 312.

[0030] Of course, this embodiment also provides another solution, that is, the clamping assembly includes a clamping seat 310 and a clamping mechanism arranged on the clamping seat 310, the clamping assembly includes a first clamping piece 311, a second clamping piece 312 and a two-way cylinder 316', the clamping seat 310 is provided with a groove 3101 for the first clamping piece 311 and the second clamping piece 312 to slide, the length of the groove 3101 is greater than the sum of the length of the first clamping piece 311 and the length of the second clamping piece 312, the cylinder body of the two-way cylinder 316' is arranged on the clamping seat 310, the telescopic rods at both ends of the two-way cylinder 316' are fixedly connected to the first clamping piece 311 and the second clamping piece 312 respectively, the two-way cylinder 316' drives the first clamping piece 311 and the second clamping piece 312 to move closer to or away from each other, thereby loosening or clamping the first transmission shaft 71 between the first clamping piece 311 and the second clamping piece 312.

[0031] Furthermore, the opposite end faces of the first clamping member 311 and the second clamping member 312 are provided with arc grooves 3111 , and the surface of the arc grooves 3111 is provided with rubber pads 3112 . The surface of the rubber pads 3112 is uneven, and the friction force with the workpiece is increased by the rubber pads 3112 .

[0032] Furthermore, the limit assembly 4 includes a vertical plate 41 fixedly arranged on the frame 10 and a limit baffle 42 fixedly arranged on the first positioning support seat 1, the limit baffle 42 extends along the direction of the vertical plate 41, the vertical plate 41 is provided with a guide rail 411 along the length direction of the frame 10, a slider 43 is slidably installed on the guide rail 411, the slider 43 slides along the length direction of the guide rail 411, a limit seat 44 is installed on the slider 43, a limit block 46 is installed at the side wall of the limit seat 44 through a pin 45, the limit block 46 is rotatably connected to the limit seat 44 through the pin 45, and the upper end of the limit block 46 is provided with a limit contact in contact with the limit block 42. Specifically, there are two guide rails 411, and the slider 43 is set on the two guide rails 411 by bolts. The limit seat 44 is provided with a through groove 441 for the limit block 46 to pass through. The width of the through groove 441 is greater than the width of the limit block 46. The limit block 46 passes through the through groove 441 and is hinged to the limit seat 44 through a pin 45. The limit block 46 is swingably connected in the through groove 441 through the pin 45. The limit block 46 is provided with a waist-shaped groove 461 in the vertical direction. The pin 45 passes through the waist-shaped groove 461 and is connected to the limit seat 44. The limit contact is a rubber wheel 47 arranged at the top of the limit block 46, and the rubber wheel 47 is rotatably arranged at the end of the limit block 46.

[0033] By adopting the above-mentioned design scheme, the beneficial effect of the utility model is: when the limit contact of the limit component 4 contacts the limit baffle 42 set on the first positioning support seat 1, the sensor on the limit component 4 sends the sensed pressure signal to the controller, and the controller receives the pressure signal from the sensor. The controller suspends the operation of the driving mechanism 5 to prevent the first support positioning seat 1 from continuing to move, and avoids the limit baffle 42 from being subjected to excessive pressure and causing dents and other damages, while also protecting the piston rod of the driving mechanism 5.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A positioning and installation device for a transmission shaft, comprising a controller, a frame, a first positioning support seat and a second positioning support seat arranged on the frame, a clamping assembly arranged between the first positioning support seat and the second positioning support seat, and a driving mechanism for driving the first positioning support seat to move in a direction close to or away from the second positioning support seat, wherein the driving end of the driving mechanism is fixedly connected to the first positioning support seat, and characterized in that: The cam is provided with a plurality of guide rails, each of which is provided with a plurality of guide rails, and the plurality of guide rails are provided with guide rails that are slidably mounted on the guide rails. The plurality of guide rails are ...

2. A transmission shaft positioning and installation device according to claim 1, characterized in that: There are two guide rails, and the sliding block is arranged on the two guide rails by bolts.

3. A transmission shaft positioning and installation device according to claim 1, characterized in that: The limit seat is provided with a through slot for the limit block to pass through, and the width of the through slot is greater than the width of the limit block. The limit block passes through the through slot and is hinged to the limit seat through the pin, and the limit block is swingably connected in the through slot through the pin.

4. A transmission shaft positioning and installation device according to claim 3, characterized in that: The limiting block is provided with a waist-shaped groove along the vertical direction, and the pin passes through the waist-shaped groove and is connected with the limiting seat.

5. The positioning and installation device for a transmission shaft according to claim 1, characterized in that: The limit contact is a rubber wheel arranged on the top of the limit block, and the rubber wheel is rotatably arranged on the end of the limit block.

6. A transmission shaft positioning and installation device according to claim 1, characterized in that: The clamping assembly includes a clamping seat and a clamping mechanism arranged on the clamping seat, the clamping mechanism includes a first clamping piece, a second clamping piece, a guide column, a support plate, an eccentric block and a handle, a clamping space for clamping a workpiece is formed between the first clamping piece and the second clamping piece, the guide column is fixed to the clamping seat in a vertical direction, the second clamping piece can be slidably mounted on the guide column up and down, the support plate is fixed to the clamping seat in a vertical direction, the eccentric block is rotatably mounted on the support plate through a support shaft, the handle is arranged on the support shaft, the eccentric block is arranged corresponding to the second clamping piece, the eccentric block has a pressing part that can press the second clamping piece and limit the movement of the second clamping piece by rotating the eccentric block, and a releasing part that can release the second clamping piece by rotating the eccentric block, a reset spring is arranged between the second clamping piece and the clamping seat, a guide pin is arranged on the clamping seat, and the reset spring is sleeved on the guide pin.

7. A transmission shaft positioning and installation device according to claim 6, characterized in that: The eccentric block has a first plane, a second plane, a first connecting surface and a second connecting surface. The first plane is arranged in parallel with the second plane. The two ends of the first connecting surface are respectively connected to the first plane and the second plane. The first connecting surface is perpendicular to the first plane. The second connecting surface is an arc-shaped surface. The first plane is the pressing part, and the second connecting surface is the releasing part.

8. The transmission shaft positioning and installation device according to claim 1, characterized in that: The clamping assembly includes a clamping seat and a clamping mechanism arranged on the clamping seat, the clamping assembly includes a first clamping piece, a second clamping piece and a bidirectional cylinder, the clamping seat is provided with a groove for the first clamping piece and the second clamping piece to slide, the length of the groove is greater than the sum of the length of the first clamping piece and the length of the second clamping piece, the cylinder body of the bidirectional cylinder is arranged on the clamping seat, the telescopic rods at both ends of the bidirectional cylinder are fixedly connected to the first clamping piece and the second clamping piece respectively, and the bidirectional cylinder drives the first clamping piece and the second clamping piece to move closer to or away from each other.

9. A transmission shaft positioning and mounting device according to any one of claims 6 or 8, characterized in that: The clamping assembly consists of two groups, namely the first clamping assembly and the second clamping assembly. The frame is provided with a slide rail along the horizontal direction. The second positioning support seat, the first clamping assembly, the second clamping assembly and the first positioning support seat can all be slidably arranged on the slide rail.

10. A transmission shaft positioning and installation device according to claim 9, characterized in that: The opposite end surfaces of the first clamping member and the second clamping member are provided with arc grooves, the surface of the arc groove is provided with rubber pads, the surface of the rubber pads is uneven, and the friction force with the workpiece is increased by the rubber pads.

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