Clamping device for calorimetric bomb welding

Abstract

The utility model discloses a calorimetric bomb welding clamping device which comprises a bottom plate, a control plate, a first clamping table and a second clamping table. The first clamping table comprises a first support, an angle adjusting plate, a first pneumatic positioning and clamping mechanism and a first profiling positioning piece. The second clamping table comprises a second support, a second profiling positioning piece, an air cylinder clamping jaw, a second pneumatic positioning and clamping mechanism and a third pneumatic positioning and clamping mechanism. According to the utility model, the welding of the calorimetric bomb can be quickly completed, the welding quality and efficiency of the calorimetric bomb are greatly improved, the consistency of finished products is good, the yield is high, and the welding device can adapt to the welding of the calorimetric bombs with different material qualities; the whole device is convenient to disassemble, move and maintain, low in operation difficulty, low in cost, safe and reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of calorimeter production, in particular to a welding clamping device for a calorimeter. Background Art

[0002] As a commonly used consumable in laboratories, the calorimeter is commonly used as a reaction vessel for the thermal risk assessment of reactive chemical substances and chemical processes, and is widely used for the thermal hazard evaluation of raw materials, intermediate products, final products, and waste, such as the testing of pharmaceuticals, petrochemicals, agricultural fertilizers, polymers, and other energetic materials. For example, the calorimeter can be used as a sample cell for storing test samples in an adiabatic accelerating calorimeter, a rapid screening calorimeter, and a small battery adiabatic calorimeter.

[0003] As Figure 11 As shown in the figure, the calorimeter 5 consists of a round tube 51 with a diameter of Φ6.35mm, an upper hemisphere 52, and a lower hemisphere 53 from top to bottom. Each part needs to be welded firmly, and the weld seam should be beautiful to avoid the situation where the blasting point is at the weld when the strength limit of the material inside the calorimeter 5 is reached. The upper hemisphere 52 of the calorimeter 8 is provided with a blind tube positioning hole. The opening direction of the blind tube positioning hole forms a certain angle with the center line of the round tube 51. A blind tube 54 with a diameter of Φ2.54mm is connected inside the positioning hole, and the length of the blind tube 54 is less than the diameter of the spherical part of the calorimeter.

[0004] The experimental environment where the calorimeter is used is often relatively harsh, with high requirements for the material selection of the calorimeter and great processing difficulty. Generally, the calorimeter is required to have properties such as corrosion resistance, high temperature resistance, and high pressure resistance, such as withstanding a pressure of 20MPa at a high temperature of 500°C. Since the structure of the calorimeter is a connection body of a sphere and a tube, and different wall thicknesses and different shaped parts are welded together, the welding quality requirements for the thin-walled parts are very high. At present, for the welding of the calorimeter, it is first fixed by spot welding, then manually clamped and fixed in position, and then rotary full welding is achieved. There are problems such as low efficiency, poor welding consistency, easy broken welding, and large safety hazards. If there is a deviation in the hemisphere docking during spot welding, broken welding will occur at the spot welding position or the position with a large deviation during full welding, resulting in the scrapping of parts. Summary of the Utility Model

[0005] The utility model proposes a welding clamping device for a calorimeter to solve the above technical problems.

[0006] In order to achieve the above object, the technical solution adopted by the utility model is as follows:

[0007] A welding clamping device for a calorimeter includes a bottom plate, a control board, a first clamping table, and a second clamping table arranged on the bottom plate;

[0008] The first clamping table includes a first bracket detachably mounted on the bottom plate, an angle adjustment plate rotatably connected to the first bracket, and a first pneumatic positioning and clamping mechanism. A through hole is provided in the middle of the angle adjustment plate. A first rotating shaft is installed in the through hole through a bearing. A first motor is connected to the lower end of the first rotating shaft, and a first profiling positioning member adapted to the upper hemisphere of the calorimeter bomb is connected to the upper end of the first rotating shaft. The first pneumatic positioning and clamping mechanism is used to clamp and position the upper hemisphere of the calorimeter bomb on the first profiling positioning member and clamp and position the circular tube of the calorimeter bomb on the upper hemisphere of the calorimeter bomb. The first profiling positioning member includes a bottom fixing portion for connecting to the first rotating shaft. A hemispherical positioning portion adapted to the upper hemisphere of the calorimeter bomb is provided at the central portion on the upper side of the bottom fixing portion. A circular tube positioning portion is connected to the top of the hemispherical positioning portion. A blind tube groove for inserting the blind tube of the calorimeter bomb is provided on the hemispherical positioning portion.

[0009] The second clamping table includes a second bracket detachably mounted on the bottom plate. A second profiling positioning member, a cylinder jaw located behind the second profiling positioning member, a second pneumatic positioning and clamping mechanism, and a third pneumatic positioning and clamping mechanism located in front of the second profiling positioning member are provided on the second bracket. The second pneumatic positioning and clamping mechanism clamps and positions the left and right sides of the sphere of the calorimeter bomb on the second profiling positioning member. The cylinder jaw is used to clamp and position the circular tube of the calorimeter bomb. The rear section of the cylinder jaw is connected to a second motor through a second rotating shaft. The third pneumatic positioning and clamping mechanism is used to clamp and position the front end of the sphere of the calorimeter bomb. The second profiling positioning member is a rectangular plate. An arc-shaped positioning seat adapted to the sphere of the calorimeter bomb is provided in the middle of the second profiling positioning member. A circular tube positioning seat is provided at one end of the second profiling positioning member. An arc-shaped groove adapted to the circular tube of the calorimeter bomb is provided at the top of the circular tube positioning seat.

[0010] The control board is provided with a control circuit and a manifold connected to an external air source. The first motor and the second motor are respectively electrically connected to the control circuit. The first pneumatic positioning and clamping mechanism, the cylinder jaw, the second pneumatic positioning and clamping mechanism, and the third pneumatic positioning and clamping mechanism are all provided with magnetic switches electrically connected to the control circuit and are respectively connected to the manifold through air paths.

[0011] Preferably, the rear section of the angle adjustment plate is rotatably connected to the first bracket through a positioning shaft. The first bracket includes a bracket bottom plate and two bracket side plates respectively connected to both sides of the bracket bottom plate. The upper ends of the bracket side plates are fan-shaped portions. A positioning hole for connecting the positioning shaft is provided near the center of the fan-shaped portion. An arc-shaped slide rail is provided on the arc-shaped surface of the fan-shaped portion. A positioning bolt connected to the angle adjustment plate is provided in the arc-shaped slide rail.

[0012] Preferably, the first pneumatic positioning and clamping mechanism includes a first slide table cylinder, a second slide table cylinder, and two groups of symmetrically arranged sphere positioning members, circular tube positioning members, and positioning side plates on the left and right sides of the hemispherical positioning portion:

[0013] The first sliding table cylinder includes a first sliding table body fixed to one end of the angle adjusting plate, and two first sliding members that are mounted on the piston rod of the first sliding table body and can slide towards each other;

[0014] The second sliding table cylinder includes a second cylinder fixing plate fixed to the other end of the angle adjusting plate, a second sliding table body fixed to the second cylinder fixing plate, a second sliding member that is mounted on the piston rod of the second sliding table body and can slide, a second core pushing head parallel to the second sliding member, and a second core pushing head fixing plate. The second sliding member and the second core pushing head are respectively fixed to the second core pushing head fixing plate, and the second core pushing head is used to abut against the calorimeter bomb round tube;

[0015] The inner side of the sphere positioning member is provided with a V-shaped opening for clamping the upper hemisphere of the calorimeter bomb, the inner side of the round tube positioning member is provided with a semi-circular opening for clamping the calorimeter bomb round tube, the round tube positioning member is arranged parallel to the sphere positioning member above, the positioning side plate includes a positioning member connecting portion and a cylinder connecting portion, the upper and lower ends of the positioning member connecting portion are respectively connected to the sides of the round tube positioning member and the sphere positioning member through mortise and tenon joints, and the cylinder connecting portion abuts against the inner side of the first sliding member of the first sliding table cylinder.

[0016] Preferably, a buffer is further provided at the other end of the angle adjusting plate to abut against the second sliding member; the bottom of the angle adjusting plate is connected with a first motor fixing plate through a plurality of first motor support rods, and the first motor is fixed on the first motor fixing plate.

[0017] Preferably, a photoelectric switch is provided on the angle adjusting plate, a light blocking piece groove is provided at the bottom fixing portion, and a light blocking piece adapted to the photoelectric switch is fixed in the light blocking piece groove.

[0018] Preferably, the second pneumatic positioning and clamping mechanism includes a third sliding table cylinder. The third sliding table cylinder includes a third sliding table body fixed to the second bracket, and two third sliding members that are mounted on the piston rod of the third sliding table body and can slide towards each other. The inner sides of the third sliding members are connected with side clamping blocks through a clamping block mounting plate, and the second profiling positioning member is fixed on the upper side of the third sliding table body; the third pneumatic positioning and clamping mechanism includes a fourth sliding table cylinder. The fourth sliding table cylinder includes a fourth cylinder fixing plate fixed to the second bracket, a fourth sliding table body fixed to the fourth cylinder fixing plate, a fourth sliding member that is mounted on the piston rod of the fourth sliding table body and can slide, the fourth sliding member is connected with a fourth core pushing head fixing plate, the fourth core pushing head fixing plate is connected with a fourth core pushing head, and the fourth core pushing head is connected with a front end clamping block.

[0019] Preferably, a slip ring is provided on the second rotating shaft.

[0020] Preferably, a plurality of cable mounting brackets for the passage of air pipes or electric wires are provided on the bottom plate.

[0021] Compared with the prior art, the utility model can quickly complete the welding of the calorimeter bomb, greatly improving the welding quality and efficiency of the calorimeter bomb. The finished products have good consistency and high yield rate, and can adapt to the welding of calorimeter bombs made of different materials. The overall device is easy to disassemble, move and maintain, with low operation difficulty, low cost and high safety and reliability. Brief Description of the Drawings

[0022] Figure 1 It is a schematic structural view of a calorimeter bomb welding clamping device of the utility model;

[0023] Figure 2 It is a schematic structural view of the first clamping table in a calorimeter bomb welding clamping device of the utility model;

[0024] Figure 3 It is a schematic structural view of another perspective of the first clamping table in a calorimeter bomb welding clamping device of the utility model;

[0025] Figure 4 It is a schematic structural view of the first profiling positioning member in a calorimeter bomb welding clamping device of the utility model;

[0026] Figure 5 It is a schematic combined structural view of the first sliding table cylinder, the second sliding table cylinder and the angle adjusting plate in a calorimeter bomb welding clamping device of the utility model;

[0027] Figure 6 It is a schematic combined structural view of the spherical positioning member, the circular tube positioning member and the positioning side plate in a calorimeter bomb welding clamping device of the utility model;

[0028] Figure 7 It is a schematic structural view of the second clamping table in a calorimeter bomb welding clamping device of the utility model;

[0029] Figure 8 It is a schematic structural view of the second profiling positioning member in a calorimeter bomb welding clamping device of the utility model;

[0030] Figure 9 It is a schematic structural view of the third sliding table cylinder in a calorimeter bomb welding clamping device of the utility model;

[0031] Figure 10 It is a schematic structural view of the fourth sliding table cylinder in a calorimeter bomb welding clamping device of the utility model;

[0032] Figure 11 It is a schematic structural view of the calorimeter bomb.

[0033] In the figure, 1 - the first clamping table, 2 - the second clamping table, 3 - the control board, 4 - the bottom plate, 5 - the calorimeter bomb, 6 - the cable mounting bracket, 11 - the first bracket, 12 - the angle adjustment plate, 13 - the first rotating shaft, 14 - the first motor, 15 - the first profiling positioning member, 16 - the first pneumatic positioning and clamping mechanism, 17 - the first motor support rod, 18 - the first motor fixing plate, 19 - the photoelectric switch, 21 - the second bracket, 22 - the second profiling positioning member, 23 - the cylinder jaw, 24 - the second rotating shaft, 25 - the second motor, 26 - the second pneumatic positioning and clamping mechanism, 27 - the third pneumatic positioning and clamping mechanism, 28 - the slip ring, 29 - the motor mounting plate, 31 - the bus bar, 32 - the solenoid valve, 51 - the round tube, 52 - the upper hemisphere, 53 - the lower hemisphere, 54 - the blind tube, 111 - the bracket bottom plate, 112 - the bracket side plate, 151 - the bottom fixing part, 152 - the hemisphere positioning part, 153 - the round tube positioning part, 154 - the blind tube groove, 155 - the light shielding plate groove, 156 - the light shielding plate, 161 - the first slide table cylinder, 162 - the second slide table cylinder, 163 - the sphere positioning member, 164 - the round tube positioning member, 165 - the positioning side plate, 166 - the buffer, 191 - the photoelectric switch mounting bracket, 221 - the rectangular bottom plate, 222 - the arc-shaped positioning seat, 223 - the round tube positioning seat, 261 - the third slide table cylinder, 271 - the fourth slide table cylinder, 1121 - the positioning hole, 1122 - the arc-shaped slide rail, 1123 - the long strip-shaped slide rail, 1124 - the limiting shaft, 1125 - the side plate opening, 1611 - the first slide table body, 1612 - the first sliding member, 1621 - the second cylinder fixing plate, 1622 - the second slide table body, 1623 - the second sliding member, 1624 - the second core-pushing member, 1625 - the second core-pushing member fixing plate, 1631 - the V-shaped opening, 1641 - the semi-circular opening, 1651 - the positioning member connecting part, 1652 - the cylinder connecting part, 2231 - the arc-shaped groove, 2611 - the third slide table body, 2612 - the third sliding member, 2613 - the clamp mounting plate, 2614 - the side clamping block, 2711 - the fourth cylinder fixing plate, 2712 - the fourth slide table body, 2713 - the fourth sliding member, 2714 - the fourth core-pushing member fixing plate, 2715 - the fourth core-pushing member, 2716 - the front-end clamping block. Detailed implementation manners

[0034] The present utility model will be described in detail below in conjunction with the specific implementation manners shown in the drawings. However, these implementation manners do not limit the present utility model, and any structural, method, or functional transformation made by those of ordinary skill in the art according to these implementation manners is included in the protection scope of the present utility model.

[0035] The terms used in the present utility model are for the purpose of describing specific embodiments only and are not intended to limit the present utility model. The singular forms "a", "the", and "said" used in the present utility model and the appended claims are also intended to include the plural forms unless the context clearly dictates otherwise. It should also be understood that the term "and / or" used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0036] As Figure 1 shown, a calorimeter bomb welding clamping device includes a bottom plate 4 and a control board 3, a first clamping table 1, and a second clamping table 2 disposed on the bottom plate, for welding the calorimeter bomb as Figure 11 shown.

[0037] As Figure 2 and Figure 3 shown, the first clamping table 1 includes a first bracket 11 detachably mounted on the bottom plate 4, an angle adjustment plate 12 rotatably connected to the first bracket 11, and a first pneumatic positioning and clamping mechanism. A through hole is provided in the middle of the angle adjustment plate 12. A first rotating shaft 13 is installed in the through hole through a bearing. A first motor 14 is connected to the lower end of the first rotating shaft 13, and a first profiling positioning member 15 adapted to the upper hemisphere 52 of the calorimeter bomb 5 is connected to the upper end of the first rotating shaft 13. The first pneumatic positioning and clamping mechanism is used to clamp and position the upper hemisphere 52 of the calorimeter bomb 5 on the first profiling positioning member 15 and clamp and position the round tube 51 of the calorimeter bomb 5 on the upper hemisphere 52 of the calorimeter bomb 5. The bottom of the angle adjustment plate 12 is connected to a first motor fixing plate 18 through four first motor support rods 17, and the first motor 14 is fixed on the first motor fixing plate 18.

[0038] Among them, a plurality of mounting holes are provided on the angle adjustment plate 12. The rear section of the angle adjustment plate 12 is rotatably connected to the first bracket 11 through a positioning shaft. The first bracket 11 includes a bracket bottom plate 111 and two bracket side plates 112 respectively connected to both sides of the bracket bottom plate 111. The upper ends of the bracket side plates 112 are fan-shaped parts. A positioning hole 1121 for connecting the positioning shaft is provided near the center of the fan-shaped part. An arc-shaped slide rail 1122 is provided on the arc-shaped surface of the fan-shaped part, and a positioning bolt connected to the angle adjustment plate 12 is provided in the arc-shaped slide rail 1122.

[0039] Further, a long strip-shaped slide rail 1123 is provided at a position adjacent to the positioning hole 1121 on the fan-shaped part of the bracket side plate 112. A limiting shaft 1124 is provided between the long strip-shaped slide rails 1123 of the two bracket side plates 112. The limiting shaft 1124 can slide in the long strip-shaped slide rail 1123 to limit and support the bottom of the angle adjustment plate 12. Side plate openings 1125 may be provided in the lower part of the bracket side plate 112 to reduce the use of brackets and facilitate the threading of air pipes, wires, etc.

[0040] As Figure 4 shown, the first profiling positioning member 15 includes a bottom fixing portion 151 for connecting with the first rotating shaft. At the central portion on the upper side of the bottom fixing portion 151, there is a hemispherical positioning portion 152 adapted to the upper hemisphere 52 of the calorimeter bomb 5. The top of the hemispherical positioning portion 152 is connected with a circular tube positioning portion 153, and a blind tube groove 154 for inserting the blind tube 54 of the calorimeter bomb is provided on the hemispherical positioning portion 153. The opening of the blind tube groove 154 is arc-shaped to adapt to different angle specifications between the blind tube 54 and the circular tube 51; the depth of the blind tube groove 154 is slightly shorter than the length of the blind tube 54, so that after the blind tube 54 is inserted into the blind tube groove 154 and the upper hemisphere 52 is clamped at the hemispherical positioning portion 152, the blind tube 54 can be adjusted in position to just be clamped into the blind tube positioning hole on the upper hemisphere 52.

[0041] The first pneumatic positioning and clamping mechanism 16 includes a first sliding table cylinder 161, a second sliding table cylinder 162, and two groups of sphere positioning members 163, circular tube positioning members 164, and positioning side plates 165 symmetrically arranged on the left and right sides of the hemispherical positioning portion 152.

[0042] As Figure 5 shown, the first sliding table cylinder 161 includes a first sliding table main body 1611 fixed to one end of the angle adjusting plate 12, and two first sliding members 1612 that can slide towards each other and are installed on the piston rod of the first sliding table main body 1611; the second sliding table cylinder 162 includes a second cylinder fixing plate 1621 fixed to the other end of the angle adjusting plate 12, a second sliding table main body 1622 fixed to the second cylinder fixing plate 1621, a second sliding member 1623 that can slide and is installed on the piston rod of the second sliding table main body 1622, a second top core 1624 parallel to the second sliding member 1623, and a second top core fixing plate 1625. The second sliding member 1623 and the second top core 1624 are respectively fixed to the second top core fixing plate 1625, and the second top core 1624 is used to abut against the calorimeter bomb circular tube 51. A buffer 166 for abutting against the second sliding member 1623 is further provided at the other end of the angle adjusting plate 12.

[0043] As Figure 6 shown, the inner side of the sphere positioning member 163 is provided with a V-shaped opening 1631 for clamping the upper hemisphere 52 of the calorimeter bomb. The inner side of the circular tube positioning member 164 is provided with a semi-circular opening 1641 for clamping the calorimeter bomb circular tube 51. The circular tube positioning member 164 is arranged parallel to the sphere positioning member 163 above. The positioning side plate 165 includes a positioning member connecting portion 1651 and a cylinder connecting portion 1652. The upper and lower ends of the positioning member connecting portion 1651 are respectively connected to the sides of the circular tube positioning member 164 and the sphere positioning member 163 through mortise and tenon joints. The cylinder connecting portion 1652 abuts against the inner side of the first sliding member 1612 of the first sliding table cylinder 161.

[0044] Here, the first sliding table cylinder 161 can adopt a pneumatic finger cylinder of model HFT10X40S, etc., and retract the piston rod to clamp the object between the first sliding members 1612, that is, the cylinder connection parts 1652 of the two positioning side plates 165, so as to drive the two round tube positioning members 164 to press the round tube 51 and drive the two sphere positioning members 163 to press the upper hemisphere 52; the second sliding table cylinder 162 can adopt a sliding table cylinder of model HLQ6X20S, etc., and retract the piston rod to press down the second core 1624 to clamp the calorimeter bomb round tube 51; the buffer 166 can adopt a hydraulic buffer AC / ACA0806, which is used to buffer load impact, avoid collision damage, eliminate noise, etc.

[0045] The angle adjustment plate 12 is provided with a photoelectric switch mounting bracket 191, a photoelectric switch 19 is mounted on the photoelectric switch mounting bracket 191, the bottom fixing part 151 is provided with a light shielding piece groove 155, and a light shielding piece 156 suitable for the photoelectric switch is fixed in the light shielding piece groove 155.

[0046] As Figure 7 As shown in the figure, the second clamping table 2 includes a second bracket 21 detachably mounted on the bottom plate 4. The second bracket 21 is provided with a second profiling positioning member 22, a cylinder jaw 23 located behind the second profiling positioning member 22, a second pneumatic positioning and clamping mechanism 26, and a third pneumatic positioning and clamping mechanism 27 located in front of the second profiling positioning member 22. The second pneumatic positioning and clamping mechanism 26 clamps and positions the left and right sides of the sphere of the calorimeter bomb 5 on the second profiling positioning member 22. The cylinder jaw 23 is used to clamp and position the round tube 51 of the calorimeter bomb 5. The rear section of the cylinder jaw 23 is connected to the second motor 25 through the second rotating shaft 24. The third pneumatic positioning and clamping mechanism 27 is used to clamp and position the front end of the sphere of the calorimeter bomb.

[0047] Specifically, the output end of the cylinder jaw 23 is provided with three grippers, and each of the three grippers includes a clamping surface. Under the control of the air circuit, the three grippers can open and close to clamp and position the round tube 51 of the calorimeter bomb 5. The rear end of the cylinder jaw 23 can be connected with a slip ring 28. The air pipe of the cylinder jaw 23 is connected to the air slip ring 6. An installation seat can be installed between the cylinder jaw 23 and the air slip ring 6, and the installation seat rotates synchronously with the cylinder jaw 23. The slip ring 28 can prevent the air pipe of the cylinder jaw 23 from being wound during rotation, so as to achieve the effect that the cylinder jaw 23 does not twist the air pipe during rotation. The second motor 25 is arranged at the rear end of the slip ring 28 through the second rotating shaft 24 to provide the power for the slip ring 28 to rotate.

[0048] To reduce the impact of the second motor 25 on other components on the second bracket 21 during the operation of the second motor 25, a motor mounting plate 29 can be fixed on the second bracket 21 to place and fix the second motor 25, and the bearing seat connected to the slip ring 28 can also be fixed on the motor mounting plate 29.

[0049] As Figure 8 shown, the second profiling positioning member 22 has a rectangular bottom plate 221. An arc-shaped positioning seat 222 adapted to the calorimeter bomb sphere is provided in the middle of the second profiling positioning member 22. One end of the second profiling positioning member 22 is provided with a circular tube positioning seat 223, and an arc-shaped groove 2231 adapted to the calorimeter bomb circular tube 51 is provided at the top of the circular tube positioning seat 223.

[0050] The second pneumatic positioning and clamping mechanism 26 includes a third slide table cylinder 261. As Figure 9 shown, the third slide table cylinder 261 includes a third slide table main body 2611 fixed to the second bracket 21 and two third sliding members 2612 that can slide towards each other and are installed on the piston rod of the third slide table main body 2611. A side clamping block 2614 is connected to the inner side of the third sliding member 2612 through a clamp block mounting plate 2613, and the second profiling positioning member 22 can be fixed on the upper side of the third slide table main body 2611.

[0051] The third pneumatic positioning and clamping mechanism 27 includes a fourth slide table cylinder 271. As Figure 10 shown, the fourth slide table cylinder 271 includes a fourth cylinder fixing plate 2711 fixed to the second bracket 21, a fourth slide table main body 2712 fixed to the fourth cylinder fixing plate 2711, and a fourth sliding member 2713 that can slide on the piston rod of the fourth slide table main body 2712. The fourth sliding member 2713 is connected to a fourth core top fixing plate 2714, the fourth core top fixing plate 2714 is connected to a fourth core top 2715, and the fourth core top 2715 is connected to a front end clamping block 2716.

[0052] Here, the third slide table cylinder 261 can adopt a pneumatic finger cylinder of model HFT10X40S, etc. The piston rod is retracted to clamp the object between the third sliding members 2612, that is, the two side clamping blocks 2614, so as to clamp the left and right sides of the sphere of the calorimeter bomb 5 and position it on the second profiling positioning member 22; the fourth slide table cylinder 271 can adopt a slide table cylinder of model HLQ6X20S, etc. The piston rod is retracted to make the fourth core top 2715 act on the front end clamping block 2716 to clamp and position the front end of the sphere of the calorimeter bomb; the cylinder jaw 23 can adopt a pneumatic finger jaw cylinder of model HFCQ16, etc., and the circular tube 51 is clamped by three jaws.

[0053] The utility model is provided with a control circuit and a bus bar 31 on a control board 3 to improve automation. A first motor 14 and a second motor 25 are respectively electrically connected to the control circuit. The bus bar 31 is respectively connected to the air supply interfaces of a first slide cylinder 161 and a second slide cylinder 162 of a first pneumatic positioning and clamping mechanism 16, a cylinder jaw 23, a third slide cylinder 261 of a second pneumatic positioning and clamping mechanism 26, and a fourth slide cylinder 271 of a third pneumatic positioning and clamping mechanism 27 through air pipes. The air inlet interface of the bus bar 31 is connected to an external air source through a plurality of electromagnetic valves 32, and the electromagnetic valves 32 correspond to each cylinder one by one. A magnetic switch and a corresponding magnetic ring structure electrically connected to the control circuit are provided on each of the first slide cylinder 161, the second slide cylinder 162, the cylinder jaw 23, the third slide cylinder 261, and the fourth slide cylinder 271. When a magnetic ring moving along with the cylinder piston rod approaches the magnetic switch, the magnetic switch is magnetized and the contacts are attracted to close. When the magnetic ring moves away from the magnetic switch, the contacts are disconnected. When the contacts are closed or disconnected, an electric signal is sent or the electric signal disappears. The control circuit controls the corresponding electromagnetic valve according to the obtained electric signal to complete the switching action of the air path.

[0054] A plurality of cable mounting brackets 6 are provided on a bottom plate 4 for the passage and collection of air pipes or electric wires, avoiding the messy distribution of cables on the bottom plate 4.

[0055] When the utility model is in use, the welding of the calorimeter bomb 5 is completed in two steps:

[0056] Firstly, the welding between the upper hemisphere 52, the blind tube 54, and the round tube 51 is completed through the first clamping table 1. The upper hemisphere 52 of the calorimeter bomb 5 to be welded is placed on the hemisphere positioning part 152 of the first profiling positioning part 15, the blind tube 54 is inserted into the blind tube groove 154, and the round tube 51 is inserted outside the round tube positioning part 153 to complete the preliminary positioning of the upper hemisphere 52, the blind tube 54, and the round tube 51. The first slide cylinder 161 and the second slide cylinder 162 are started, and the upper hemisphere 52, the blind tube 54, and the round tube 51 are pressed and positioned through the pressing sphere positioning part 163, the round tube positioning part 164, the positioning side plate 165, and the second core 1624. The angle of the round tube 51 or the blind tube 54 is adjusted through the angle adjustment of the angle adjustment plate 12 to be in a direction convenient for laser welding so that the laser welder can perform welding. The first motor 14 is started to drive the first rotating shaft 13 to rotate the first profiling positioning part 15 to complete the welding of the circumference of the connection between the round tube 51, the blind tube 54, and the upper hemisphere 52.

[0057] Then, the welding of the upper hemisphere 52 and the lower hemisphere 53 is completed through the second clamping table 2. The upper hemisphere 52 and the lower hemisphere 53 of the upper calorimeter bomb 5 are spliced into a complete sphere and placed on the arc-shaped positioning seat 222 of the second profiling positioning member 22. The splicing seam is in the vertical direction. The circular tube 51 that has been welded to the upper hemisphere 52 is horizontally placed on the arc-shaped groove 2231 of the circular tube positioning seat 223 of the second profiling positioning member 22. The third sliding table cylinder 261 is started, and the left and right sides of the sphere of the calorimeter bomb 5 are clamped by two side clamping blocks 2614 and positioned on the second profiling positioning member 22. The fourth sliding table cylinder 271 is started to clamp and position the front end of the sphere of the calorimeter bomb through the front clamping block 2716. The cylinder jaw 23 is started to clamp the circular tube 51 with three jaws. The splicing seam is maintained in the vertical direction to facilitate welding by the laser welder. The laser welder is started to perform one or more spot welds first so that the upper hemisphere 52 and the lower hemisphere 53 can rotate together. Then, the second motor 25 is started to drive the second rotating shaft 24 to rotate the sphere, and the laser welder is started to perform full welding operation to complete the welding of a circle at the splicing part of the upper hemisphere 52 and the lower hemisphere 53.

[0058] Those skilled in the art will readily conceive of other embodiments of the present utility model after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present utility model that follow the general principles of the present utility model and include known common knowledge or conventional technical means in the technical field not disclosed in the present utility model. The specification and embodiments are only regarded as exemplary, and the true scope and spirit of the present utility model are pointed out by the claims of this application.

[0059] It should be understood that the present utility model is not limited to the exact structure described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present utility model is only limited by the appended claims.

Claims

1. A calorimetric bomb welding clamping device, characterized in that, It includes a bottom plate, a control board, a first clamping table, and a second clamping table disposed on the bottom plate; The first clamping table includes a first bracket detachably mounted on the bottom plate, an angle adjustment plate rotatably connected to the first bracket, and a first pneumatic positioning and clamping mechanism. A through hole is provided in the middle of the angle adjustment plate. A first rotating shaft is installed in the through hole through a bearing. The lower end of the first rotating shaft is connected to a first motor, and the upper end of the first rotating shaft is connected to a first profiling positioning member adapted to the upper hemisphere of the calorimeter bomb. The first pneumatic positioning and clamping mechanism is used to clamp and position the upper hemisphere of the calorimeter bomb on the first profiling positioning member and clamp and position the circular tube of the calorimeter bomb on the upper hemisphere of the calorimeter bomb. The first profiling positioning member includes a bottom fixing portion for connecting to the first rotating shaft. A hemispherical positioning portion adapted to the upper hemisphere of the calorimeter bomb is provided at the central portion on the upper side of the bottom fixing portion. A circular tube positioning portion is connected to the top of the hemispherical positioning portion. A blind tube groove for inserting the blind tube of the calorimeter bomb is provided on the hemispherical positioning portion; The second clamping table includes a second bracket detachably mounted on the bottom plate. A second profiling positioning member, a cylinder jaw located behind the second profiling positioning member, a second pneumatic positioning and clamping mechanism, and a third pneumatic positioning and clamping mechanism located in front of the second profiling positioning member are provided on the second bracket. The second pneumatic positioning and clamping mechanism clamps and positions the left and right sides of the sphere of the calorimeter bomb on the second profiling positioning member. The cylinder jaw is used to clamp and position the circular tube of the calorimeter bomb. The rear section of the cylinder jaw is connected to a second motor through a second rotating shaft. The third pneumatic positioning and clamping mechanism is used to clamp and position the front end of the sphere of the calorimeter bomb. The second profiling positioning member is a rectangular plate. An arc-shaped positioning seat adapted to the sphere of the calorimeter bomb is provided in the middle of the second profiling positioning member. A circular tube positioning seat is provided at one end of the second profiling positioning member. An arc-shaped groove adapted to the circular tube of the calorimeter bomb is provided at the top of the circular tube positioning seat; A control circuit and a manifold connected to an external air source are provided on the control board. The first motor and the second motor are respectively electrically connected to the control circuit. The first pneumatic positioning and clamping mechanism, the cylinder jaw, the second pneumatic positioning and clamping mechanism, and the third pneumatic positioning and clamping mechanism are all provided with magnetic switches electrically connected to the control circuit and are respectively connected to the manifold through air paths.

2. The calorimetric bomb welding clamping device according to claim 1, characterized in that, The rear section of the angle adjustment plate is rotatably connected to the first bracket through a positioning shaft. The first bracket includes a bracket bottom plate and two bracket side plates respectively connected to both sides of the bracket bottom plate. The upper ends of the bracket side plates are fan-shaped portions. A positioning hole for connecting the positioning shaft is provided near the center of the fan-shaped portion. An arc-shaped slide rail is provided on the arc-shaped surface of the fan-shaped portion. A positioning bolt connected to the angle adjustment plate is provided in the arc-shaped slide rail.

3. The calorimetric bomb welding clamping device according to claim 1, characterized in that The first pneumatic positioning and clamping mechanism includes a first slide table cylinder, a second slide table cylinder, and two groups of symmetrically arranged sphere positioning members, circular tube positioning members, and positioning side plates on the left and right sides of the hemispherical positioning portion: The first slide table cylinder includes a first slide table main body fixed to one end of the angle adjustment plate and two first sliding members slidably mounted on the piston rod of the first slide table main body and capable of sliding towards each other; The second sliding table cylinder includes a second cylinder fixing plate fixed to the other end of the angle adjustment plate, a second sliding table main body fixed to the second cylinder fixing plate, a second sliding member slidably mounted on the piston rod of the second sliding table main body, a second core-pushing member parallel to the second sliding member, and a second core-pushing member fixing plate. The second sliding member and the second core-pushing member are respectively fixed to the second core-pushing member fixing plate, and the second core-pushing member is used to abut against the calorimeter bomb round tube. The inner side of the sphere positioning member is provided with a V-shaped opening for clamping the upper hemisphere of the calorimeter bomb, and the inner side of the round tube positioning member is provided with a semi-circular opening for clamping the calorimeter bomb round tube. The round tube positioning member is arranged parallel to the sphere positioning member above. The positioning side plate includes a positioning member connecting portion and a cylinder connecting portion. The upper and lower ends of the positioning member connecting portion are respectively connected to the sides of the round tube positioning member and the sphere positioning member by mortise and tenon joints. The cylinder connecting portion abuts against the inner side of the first sliding member of the first sliding table cylinder.

4. The calorimetric bomb welding clamping device according to claim 3, characterized in that, A buffer is further provided at the other end of the angle adjustment plate to abut against the second sliding member; the bottom of the angle adjustment plate is connected with a first motor fixing plate through a plurality of first motor support rods, and the first motor is fixed on the first motor fixing plate.

5. The calorimetric bomb welding clamping device according to claim 3, wherein An optoelectronic switch is provided on the angle adjustment plate, and a light shielding piece groove is provided on the bottom fixing portion, and a light shielding piece adapted to the optoelectronic switch is fixed in the light shielding piece groove.

6. The calorimetric bomb welding clamping device according to claim 1, characterized in that, The second pneumatic positioning and clamping mechanism includes a third sliding table cylinder. The third sliding table cylinder includes a third sliding table main body fixed to the second bracket, and two third sliding members slidably mounted on the piston rod of the third sliding table main body and sliding towards each other. The inner sides of the third sliding members are connected with side clamping blocks through clamping block mounting plates, and the second profiling positioning member is fixed to the upper side of the third sliding table main body; the third pneumatic positioning and clamping mechanism includes a fourth sliding table cylinder. The fourth sliding table cylinder includes a fourth cylinder fixing plate fixed to the second bracket, a fourth sliding table main body fixed to the fourth cylinder fixing plate, a fourth sliding member slidably mounted on the piston rod of the fourth sliding table main body, the fourth sliding member is connected with a fourth core-pushing member fixing plate, the fourth core-pushing member fixing plate is connected with a fourth core-pushing member, and the fourth core-pushing member is connected with a front clamping block.

7. A calorimetric bomb welding clamping device according to claim 1, characterized in that, A slip ring is provided on the second rotating shaft.

8. A calorimetric bomb welding clamping device according to claim 1, characterized in that, A plurality of cable mounting brackets for the passage of air pipes or electric wires are provided on the bottom plate.

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