Cone body butt joint device of longitudinal axial flow roller

Abstract

The utility model belongs to the technical field of agricultural machinery assembly, and particularly relates to a cone body butt joint device of a longitudinal axial flow roller, which comprises a base plate, and the base plate is provided with a left clamping rotating assembly, a right clamping rotating assembly, a roller supporting clamping assembly, a cone positioning assembly, a cone supporting assembly and a roller positioning assembly. The left clamping and rotating assembly and the right clamping and rotating assembly are movably installed on the base plate, the left clamping and rotating assembly and the right clamping and rotating assembly are oppositely arranged, the left clamping and rotating assembly comprises a left chuck and a left clamping jaw arranged on the left chuck, and the left chuck is rotationally arranged on the base plate; the right clamping and rotating assembly comprises a right chuck and a right clamping jaw arranged on the right chuck, and the right chuck is rotationally arranged on the base plate. The roller supporting and clamping assembly is used for supporting and clamping a roller body of the roller. Precise butt joint of the roller cone and the roller body is guaranteed, and jumping of the roller front shaft, the roller rear shaft and the roller body can be reduced after welding.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of cone cylinder butt joint devices of longitudinal axial flow cylinder, belong to the technical field of agricultural machinery assembly. BACKGROUND

[0002] Cylinder is one of the core parts of harvester, and bears the threshing and separating function of crops. Since the cylinder is installed inside the harvester, if the cylinder front and rear shaft and the cylinder body have large runout, it will have a great impact on the performance of the whole machine, causing abnormal noise and vibration during operation of the agricultural machinery, and reducing the service life of the cylinder. Therefore, it is necessary to control the runout of the harvester cylinder front and rear shaft and the cylinder body during production.

[0003] The existing cylinder cone and cylinder body butt joint uses a tool to position the cylinder body, then places the cone at the front end of the tool, and preliminarily butt joints the cone and the cylinder body. Finally, the position of the cone is adjusted by comparing the laser etching line on the cylinder body, and then welded. The existing butt joint tool cannot accurately butt joint the cone and the cylinder body, and can only be preliminarily butt jointed. Workers need to adjust it again according to the etching line on the cylinder body, which is not easy to control the precision and takes a long time to operate. SUMMARY

[0004] The utility model provides a kind of cone cylinder butt joint devices of longitudinal axial flow cylinder in view of the above technical problems of prior art.

[0005] The technical scheme for solving the above technical problems of the utility model is as follows: a kind of cone cylinder butt joint devices of longitudinal axial flow cylinder, including base plate, left clamping rotating assembly, right clamping rotating assembly, cylinder support clamping assembly, cone positioning assembly, cone support assembly and cylinder positioning assembly are equipped on the base plate;The left clamping rotating assembly and the right clamping rotating assembly are movably installed on the base plate, the left clamping rotating assembly and the right clamping rotating assembly are oppositely arranged, the left clamping rotating assembly includes left chuck and left jaw provided on the left chuck, and the left chuck is rotatably arranged on the base plate;The right clamping rotating assembly includes right chuck and right jaw provided on the right chuck, and the right chuck is rotatably arranged on the base plate;The cylinder support clamping assembly is used to support and clamp the cylinder body of cylinder;The cone positioning assembly includes cone positioning web, the cone positioning web is liftably installed on the base plate, and the first positioning baffle and the second positioning baffle for positioning the cylinder cone are provided on the cone positioning web;The cone support assembly includes cone support seat, the cone support seat is liftably installed on the base plate, and the cone support seat is symmetrically provided with cone support roller;The cylinder positioning assembly includes cylinder positioning plate, and the cylinder positioning plate is liftably installed on the base plate.

[0006] The utility model discloses beneficial effect lies in: the utility model discloses through the drum cone and the drum body are positioned accurately to the drum cone and the drum body, can drive the drum whole rotation through left clamping rotating component and right clamping rotating component, and the cooperation detection device can measure the drum precision, and the real -time understanding drum whether is qualified, further improve the drum qualified rate, in addition, the utility model discloses whole adopts pneumatic clamping structure to equip the slide platform and can satisfy the length different drum use.

[0007] Further, the left clamping rotating component includes a left connecting plate movably mounted on the base plate, a left support seat provided on the left connecting plate, and a left chuck rotatably mounted on the left support seat.

[0008] Further, the base plate is provided with a slide rail two and a cylinder one, the left connecting plate is slidably mounted on the slide rail two, and a piston rod end of the cylinder one is connected with the left connecting plate.

[0009] Further, the right clamping rotating component includes a right connecting plate slidably mounted on the slide rail two, a right positioning pin provided on the right connecting plate, a plurality of pin holes provided on the base plate, a right sliding seat provided on the right connecting plate, a right chuck rotatably mounted on the right sliding seat, and a right jaw operation button provided on the right sliding seat for clamping or loosening the right jaw.

[0010] Further, the right connecting plate is provided with a slide rail three and a cylinder two, the right sliding seat is slidably mounted on the slide rail three, a piston rod end of the cylinder two is connected with the right sliding seat, and an end of the right connecting plate is provided with a right seat limiting piece.

[0011] Further, the drum supporting and clamping component includes a middle connecting plate movably mounted on the base plate, a middle positioning pin provided on the middle connecting plate, the middle positioning pin inserted into the pin hole for positioning and locking the middle connecting plate, two drum clamping arms oppositely provided on the middle connecting plate, the drum clamping arms movably mounted on the middle connecting plate, a drum positioning pin provided on the drum clamping arm, and a drum supporting plate provided between the two drum clamping arms.

[0012] Further, the middle connecting plate is provided with a cylinder three and a slide rail four, two slide tables are slidably arranged on the slide rail four, two cylinder holding arms are mounted on the slide tables, the piston rod end of the cylinder three is connected with one of the slide tables, a transmission gear is rotatably arranged on the middle connecting plate, the bottoms of the two slide tables are respectively provided with transmission racks, the transmission racks are respectively engaged with the transmission gear, and the directions in which the two transmission racks are engaged with the transmission gear are opposite.

[0013] Further, the cone positioning assembly comprises a cone positioning seat and a cone positioning cylinder, the cone positioning seat is mounted on the base plate, and the cone positioning connecting plate is liftable mounted on the cone positioning seat through the cone positioning cylinder.

[0014] Further, the cone supporting assembly comprises a cone supporting connecting plate, the cone supporting connecting plate is mounted on the base plate, and the cone supporting seat is liftable mounted on the cone supporting connecting plate through a cone supporting lifting mechanism.

[0015] Further, the cone supporting connecting plate is provided with an indicator one, the indicator one is used for accurately adjusting the lifting height, after the cone supporting roller is adjusted to an accurate position according to the position of the indicator one, the cone is placed on the cone supporting roller to be supported, and then the front shaft of the cone is clamped in the left clamping jaw.

[0016] Further, the laser detection assembly comprises a detection supporting seat, the detection supporting seat is movably mounted on the base plate, the base plate is provided with a slide rail one, the detection supporting seat is slidably mounted on the slide rail one, the detection supporting seat is provided with a locking mechanism, the detection supporting seat is movably provided with a laser device mounting seat, the laser device mounting seat is provided with a laser device and a mounting seat locking bolt, the laser device is mounted on the laser device mounting seat, and the detection supporting seat is provided with a limiting pin hole corresponding to the mounting seat locking bolt.

[0017] The beneficial effects of the above further technical scheme are that: since the existing drum front and rear shaft runout detection can only rely on manual use of a dial gauge, the detection amount is large and errors are prone to occur, the laser detection assembly is arranged, the position of the laser detection assembly on the base plate is adjusted, and thus the drum front and rear shaft runout amount is detected. BRIEF DESCRIPTION OF DRAWINGS

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

[0019] Figure 2 It is a structure schematic view of the base plate;

[0020] Figure 3 It is a structure schematic view of the left clamping rotating assembly;

[0021] Figure 4 Structure diagram of right clamping rotating assembly;

[0022] Figure 5 Structure diagram of cylinder supporting and clamping assembly;

[0023] Figure 6 Structure diagram of cone positioning assembly;

[0024] Figure 7 Structure diagram of cone supporting assembly;

[0025] Figure 8 Structure diagram of cylinder positioning assembly;

[0026] Figure 9 Structure diagram of laser detection assembly.

[0027] The reference signs are recorded as follows: 100, base plate; 101, slide rail one; 102, slide rail two; 103, bolt hole; 104, air cylinder one; 200, left clamping rotating assembly; 201, left chuck; 202, left claw; 203, left connecting plate; 204, left supporting seat; 205, left claw operation button; 300, right clamping rotating assembly; 301, right chuck; 302, right claw; 303, air cylinder two; 304, right connecting plate; 305, right positioning bolt; 306, right sliding seat; 307, slide rail three; 308, right seat limiting piece; 309, right claw operation button; 400, cylinder supporting and clamping assembly; 401, cylinder clamping arm; 402, air cylinder three; 403, middle connecting plate; 404, slide rail four; 405, middle positioning bolt; 406, cylinder positioning bolt; 407, cylinder supporting plate; 408, sliding table; 409, transmission rack; 500, cone positioning assembly; 501, cone positioning seat; 502, cone positioning air cylinder; 503, cone positioning connecting plate; 504, first positioning baffle; 505, second positioning baffle; 600, cone supporting assembly; 601, cone supporting connecting plate; 602, cone supporting seat; 603, cone supporting roller; 604, cone supporting lifting mechanism; 605, sign one; 700, cylinder positioning assembly; 701, cylinder positioning connecting plate; 702, cylinder positioning plate; 703, cylinder positioning air cylinder; 800, laser detection assembly; 801, detection supporting seat; 802, locking mechanism; 803, laser; 804, laser mounting seat; 805, mounting seat locking bolt. DETAILED DESCRIPTION

[0028] The principles and features of the present application are described below in conjunction with the accompanying drawings, and the examples are only used to explain the present application and are not used to limit the scope of the present application.

[0029] Referring to Figure 1 - Figure 8The application discloses a kind of cone cylinder butt joint devices of longitudinal axis flow cylinder, including base plate 100, base plate 100 is equipped with left clamping rotating component 200, right clamping rotating component 300, cylinder support clamping component 400, cone positioning component 500, cone support component 600 and cylinder positioning component 700;Left clamping rotating component 200 and right clamping rotating component 300 are movably installed on base plate 100, left clamping rotating component 200 and right clamping rotating component 300 are oppositely arranged, left clamping rotating component 200 includes left chuck 201 and left jaw 202 equipped on left chuck 201, left chuck 201 is rotatably arranged on base plate 100;Right clamping rotating component 300 includes right chuck 301 and right jaw 302 equipped on right chuck 301, right chuck 301 is rotatably arranged on base plate 100;Cylinder support clamping component 400 is used to support and clamp the cylinder body of cylinder;Cone positioning component 500 includes cone positioning connecting plate 503, cone positioning connecting plate 503 is liftably installed on base plate 100, first positioning baffle 504 and second positioning baffle 505 for positioning the cone of cylinder are equipped on cone positioning connecting plate 503;Cone support component 600 includes cone support seat 602, cone support seat 602 is liftably installed on base plate 100, and cone support seat 602 is symmetrically equipped with cone support roller 603;Cylinder positioning component 700 includes cylinder positioning connecting plate 701 and cylinder positioning plate 702, cylinder positioning connecting plate 701 is installed on base plate 100, and cylinder positioning plate 702 is liftably installed on cylinder positioning connecting plate 701 by cylinder positioning cylinder 703, specifically, the cylinder body of cylinder positioning cylinder 703 is installed on cylinder positioning connecting plate 701, and the end of piston rod of cylinder positioning cylinder 703 is connected with cylinder positioning plate 702 by passing through cylinder positioning connecting plate 701.

[0030] Left clamping rotating component 200 includes left connecting plate 203, left connecting plate 203 is movably installed on base plate 100, left supporting seat 204 is equipped on left connecting plate 203, left chuck 201 is rotatably installed on left supporting seat 204, left jaw operating button 205 is equipped on left supporting seat 204, and left jaw operating button 205 is used to clamp or loosen left jaw 202.

[0031] Slide rail two 102 and cylinder one 104 are equipped on base plate 100, left connecting plate 203 is slidably installed on slide rail two 102, and the end of piston rod of cylinder one 104 is connected with left connecting plate 203.

[0032] Right clamping rotating component 300 includes right connecting plate 304, right connecting plate 304 is slidably installed on slide rail two 102, right positioning pin 305 is equipped on right connecting plate 304, a plurality of pin holes 103 are equipped on base plate 100, right sliding seat 306 is equipped on right connecting plate 304, right chuck 301 is rotatably installed on right sliding seat 306, right jaw operating button 309 is equipped on right sliding seat 306, and right jaw operating button 309 is used to clamp or loosen right jaw 302.

[0033] The right connecting plate 304 is provided with a slide rail three 307 and a cylinder two 303, the right slide seat 306 is slidably installed on the slide rail three 307, the piston rod end of the cylinder two 303 is connected with the right slide seat 306, and the end of the right connecting plate 304 is provided with a right seat limiting piece 308.

[0034] The cylinder supporting and clamping assembly 400 comprises a middle connecting plate 403 movably installed on the base plate 100, the middle connecting plate 403 is provided with a middle positioning bolt 405, the middle positioning bolt 405 is inserted into the bolt hole 103 for positioning and locking of the middle connecting plate 403, and the middle connecting plate 403 is oppositely provided with two cylinder clamping arms 401 movably installed on the middle connecting plate 403, the cylinder clamping arms 401 are provided with cylinder positioning bolts 406, and the cylinder supporting plate 407 is arranged between the two cylinder clamping arms 401, the upper end surface of the cylinder supporting plate 407 is provided with a groove for supporting the cylinder body, and the two sides of the groove are inclined to facilitate supporting the cylinder body and avoiding rolling deviation of the cylinder body.

[0035] The middle connecting plate 403 is provided with a cylinder three 402 and a slide rail four 404, two slide tables 408 are slidably arranged on the slide rail four 404, the two cylinder clamping arms 401 are installed on the slide tables 408, the piston rod end of the cylinder three 402 is connected with one of the slide tables 408, a transmission gear (not shown in the figure) is rotatably arranged on the middle connecting plate 403, the bottoms of the two slide tables 408 are respectively provided with transmission racks 409, the transmission racks 409 are respectively engaged with the transmission gear, and the directions in which the two transmission racks 409 are engaged with the transmission gear are opposite.

[0036] The cone positioning assembly 500 comprises a cone positioning seat 501 and a cone positioning cylinder 502, the cone positioning seat 501 is installed on the base plate 100, and the cone positioning connecting plate 503 is liftable and lowerable on the cone positioning seat 501 through the cone positioning cylinder 502.

[0037] The cone supporting assembly 600 comprises a cone supporting connecting plate 601 installed on the base plate 100, a cone supporting seat 602 installed on the cone supporting connecting plate 601 in a liftable manner through a cone supporting lifting mechanism 604, and a cone supporting roller 603 arranged on both sides of the top of the cone supporting seat 602 and protruding from the inclined surface of the top of the cone supporting seat 602.

[0038] The laser detection assembly 800 comprises a detection supporting seat 801 movably installed on the base plate 100, a locking mechanism 802 arranged on the detection supporting seat 801, a laser device mounting seat 804 movably arranged on the detection supporting seat 801, a laser device 803 mounted on the laser device mounting seat 804, a mounting seat locking bolt 805 arranged on the laser device mounting seat 804, a limiting pin hole arranged on the detection supporting seat 801 corresponding to the mounting seat locking bolt 805, and a mounting seat sliding rail installed on the detection supporting seat 801.

[0039] The use process of the utility model is as follows:

[0040] (1) first open each mechanism and move each mechanism to the corresponding position according to the production model, and all mechanisms are in the state of preparing to put the workpiece;

[0041] (2) Hoist the cylinder body to the device, support the cylinder body through the cylinder support plate 407, operate the pneumatic control console, raise the cylinder positioning plate 702 in the cylinder positioning assembly 700, the cylinder positioning plate 702 pushes the cylinder so that the end face of the cylinder body contacts the cylinder positioning plate 702 to complete the axial positioning of the cylinder body; then move the two cylinder clamping arms 401 in the cylinder support clamping assembly 400 close to each other through the operation of the pneumatic control console to clamp the cylinder body, and then position the cylinder body of the cylinder in the radial direction through the cylinder positioning pin 406; operate the pneumatic control console again to lower the cylinder positioning plate 702;

[0042] (3) Place the assembled cylinder rear end shaft assembly on the right jaw 302 of the right clamping and rotating assembly 300, and operate the right jaw operation button 309 to clamp the cylinder rear end shaft with the right jaw 302;

[0043] (4) Hoist the cylinder cone to the cone support assembly 600, support the cone through the cone support seat 602, then place the cone front end shaft into the left jaw 202 of the left clamping and rotating assembly 200, operate the left jaw operation button 205 to clamp the cone front end shaft with the left jaw 202, then rotate the left chuck 201 to place the cone in the correct position, and then raise the cone positioning connecting plate 503 of the cone positioning assembly 500 through the operation of the pneumatic control console, and position the cone through the first positioning flange 504 and the second positioning flange 505;

[0044] (5) After the cone and the cylinder body are both positioned, operate the pneumatic control console to control the piston rod of the cylinder one 104 to extend and push the left clamping and rotating assembly 200 and the cone to move axially, so that the cone is connected with the cylinder body;

[0045] (6) Operate the pneumatic control console to control the piston rod of the cylinder two 303 in the right clamping and rotating assembly 300 to extend and push the right sliding seat 306 to move, drive the cylinder rear end shaft assembly to move, after the right sliding seat 306 moves to the right seat limiting piece 308, use the right seat limiting piece 308 to limit the right sliding seat 306 and position the axial movement of the cylinder rear end shaft assembly, after the right sliding seat 306 is moved to the position, the connection between the cylinder rear end shaft assembly and the cylinder body is completed;

[0046] (7) Weld the weld joint between the cone, the cylinder rear end shaft assembly and the cylinder body;

[0047] (8) Reset the cylinder positioning pin 406 in the cylinder support clamping assembly 400, and then operate the pneumatic control console to drive the two cylinder clamping arms 401 to move away from each other and reset, and lower the cone positioning connecting plate 503 of the cone positioning assembly 500;

[0048] (9) move the laser detection assembly 800 to a suitable position (according to the detection needs), and lock the laser 803 through the mounting base locking pin 805 after adjusting the position, then rotate the left chuck 201 and the right chuck 301 to rotate the roller, measure the relevant data through the laser 803 in the laser detection assembly 800, and record the measurement data on the data display screen after transmission;

[0049] (10) move two of the three groups of laser detection mechanisms to the two sides of the device and lock the laser 803 through the mounting base locking pin 805 after adjusting the position, and repeat the above operation to measure the axial runout before and after measurement, and record the measurement data on the data display screen after transmission;

[0050] (11) after the measurement is completed, the cylinder supporting and clamping assembly 400 is operated again through the air control operation table, the two cylinder clamping arms 401 are clamped again, the left claw operation button 205 is operated to release the left claw 202, then the air control operation table is operated to control the left clamping rotating assembly 200 to reset, the right claw operation button 309 is operated to release the right claw 302, and then the air control operation table is operated to reset the right clamping rotating assembly 300;

[0051] (12) after the above operation is completed, the two cylinder clamping arms 401 are reset through the air control operation table, and after each mechanism is reset, the product is finally lowered.

[0052] The above only describes the preferred embodiments of the present application, and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A cone-shaped cylinder docking device for a longitudinal axial flow roller, comprising a base plate (100), characterized in that, The base plate (100) is provided with a left clamping rotating assembly (200), a right clamping rotating assembly (300), a cylinder support clamping assembly (400), a cone positioning assembly (500), a cone support assembly (600), and a cylinder positioning assembly (700); the left clamping rotating assembly (200) and the right clamping rotating assembly (300) are movably mounted on the base plate (100), and the left clamping rotating assembly (200) and the right clamping rotating assembly (300) are arranged opposite to each other. The left clamping rotating assembly (200) includes a left chuck (201) and a left jaw (202) provided on the left chuck (201), and the left chuck (201) is rotatably mounted on the base plate (100); the right clamping rotating assembly (300) includes a right chuck (301) and a right jaw (302) provided on the right chuck (301). The right chuck (301) is rotatably mounted on the base plate (100); the cylinder support clamping assembly (400) is used to support and clamp the cylinder body of the roller; the cone positioning assembly (500) includes a cone positioning connecting plate (503), which is movably mounted on the base plate (100), and the cone positioning connecting plate (503) is provided with a first positioning stop (504) and a second positioning stop (505) for positioning the cone of the roller; the cone support assembly (600) includes a cone support seat (602), which is movably mounted on the base plate (100), and the cone support seat (602) is symmetrically provided with cone support rollers (603); the cylinder positioning assembly (700) includes a cylinder positioning plate (702), which is movably mounted on the base plate (100).

2. The cone-shaped cylinder docking device for a longitudinal axial flow roller according to claim 1, characterized in that, The left clamping rotation assembly (200) includes a left connecting plate (203), which is movably mounted on the base plate (100). The left connecting plate (203) is provided with a left support seat (204), and the left chuck (201) is rotatably mounted on the left support seat (204). The left support seat (204) is provided with a left claw operation button (205), which is used to clamp or release the left claw (202).

3. The cone-shaped cylinder docking device for the longitudinal axial flow roller according to claim 2, characterized in that, The base plate (100) is provided with a slide rail two (102) and a cylinder one (104). The left connecting plate (203) is slidably mounted on the slide rail two (102). The piston rod end of the cylinder one (104) is connected to the left connecting plate (203).

4. The cone-shaped cylinder docking device for the longitudinal axial flow roller according to claim 3, characterized in that, The right clamping rotation assembly (300) includes a right connecting plate (304), which is slidably mounted on the slide rail (102). The right connecting plate (304) is provided with a right positioning pin (305). The base plate (100) is provided with a plurality of pin holes (103). The right connecting plate (304) is provided with a right sliding seat (306). The right chuck (301) is rotatably mounted on the right sliding seat (306). The right sliding seat (306) is provided with a right claw operation button (309), which is used to clamp or release the right claw (302).

5. The cone-shaped cylinder docking device for a longitudinal axial flow roller according to claim 4, characterized in that, The right connecting plate (304) is provided with a slide rail three (307) and a cylinder two (303). The right sliding seat (306) is slidably installed on the slide rail three (307). The piston rod end of the cylinder two (303) is connected to the right sliding seat (306). The end of the right connecting plate (304) is provided with a right seat limiting member (308).

6. The cone-shaped cylinder docking device for a longitudinal axial flow roller according to claim 5, characterized in that, The cylinder support clamping assembly (400) includes a central connecting plate (403), which is movably mounted on the base plate (100). Two cylinder clamping arms (401) are provided opposite to each other on the central connecting plate (403). The cylinder clamping arms (401) are movably mounted on the central connecting plate (403). A cylinder positioning pin (406) is provided on the cylinder clamping arms (401). A cylinder support plate (407) is provided between the two cylinder clamping arms (401).

7. The cone-shaped cylinder docking device for a longitudinal axial flow roller according to claim 6, characterized in that, The middle connecting plate (403) is provided with a cylinder three (402) and a slide rail four (404). Two slide tables (408) are slidably provided on the slide rail four (404). Two cylinder clamping arms (401) are installed on the slide tables (408). The piston rod end of the cylinder three (402) is connected to one of the slide tables (408). A transmission gear is rotatably provided on the middle connecting plate (403). The bottom of the two slide tables (408) is provided with a transmission rack (409). The transmission rack (409) meshes with the transmission gear respectively. The two transmission racks (409) mesh with the transmission gear in opposite directions.

8. The cone-shaped cylinder docking device for a longitudinal axial flow roller according to claim 7, characterized in that, The cone positioning assembly (500) includes a cone positioning seat (501) and a cone positioning cylinder (502). The cone positioning seat (501) is mounted on the base plate (100), and the cone positioning connecting plate (503) is mounted on the cone positioning seat (501) in a liftable manner via the cone positioning cylinder (502).

9. The cone-shaped cylinder docking device for a longitudinal axial flow roller according to claim 8, characterized in that, The cone support assembly (600) includes a cone support connecting plate (601), which is mounted on the base plate (100). The cone support seat (602) is mounted on the cone support connecting plate (601) via a cone support lifting mechanism (604).

10. The cone-shaped cylinder docking device for a longitudinal axial flow roller according to any one of claims 1-9, characterized in that, It also includes a laser detection assembly (800), which includes a detection support (801) that is movably mounted on the substrate (100). A laser mounting base (804) is movably provided on the detection support (801). A laser (803) and a mounting base locking pin (805) are provided on the laser mounting base (804). A limiting pin hole is provided on the detection support (801) corresponding to the mounting base locking pin (805).

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