Heat shield packaging device

Abstract

The utility model provides a heat shield packaging device, and belongs to the technical field of packaging hold-down tools. According to the heat shield packaging device, four position fixing blocks are fixedly connected to the bearing face of the lower end of a clamp body unit, and a lower die bearing block with the upper layer and the lower layer integrally connected is movably arranged between the position fixing blocks; threaded holes are formed in the side faces of the position fixing blocks and can be matched with first fixing bolts, and the first fixing bolts abut against the periphery of the lower layer of the lower die bearing block. A clamping unit is arranged above the lower die bearing block; the top end of the clamp main body unit is fixedly connected with a servo pressing unit; pressure control units are arranged on the side faces of the clamp body units. According to the utility model, the accurate control on the wrapping pressing force of the heat shield is realized, the appearance quality and the welding spot quality of the heat shield wrapping are improved, and the labor intensity of workers is further reduced by an automatic production mode; the upper die and the lower die can be matched with corresponding connecting structures to be quickly detached and replaced, production cost is further reduced, and production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of packaging press, specifically relates to a heat shield packaging device. BACKGROUND

[0002] With the demand of automobile intelligentization more and more intense, the components and parts distributed outside the engine compartment gradually increase, and the temperature requirement of the surrounding environment of the engine compartment gradually enhances;The emergence of exhaust pipe heat shield has solved this problem, and the exhaust pipe heat shield can effectively reduce the heat transfer of the exhaust pipe, prevent the damage of heat to the surrounding environment or other components. The exhaust pipe heat shield can reduce the temperature of the engine compartment, prevent the overheating of other components around the engine, in addition, the exhaust pipe heat shield can also make the temperature inside the exhaust pipe rise, thereby improving the thermal efficiency.

[0003] The exhaust pipe heat shield is mainly composed of high-silicon glass fiber felt and embossed stainless steel plate or stainless steel worm plate. In the general heat shield packaging process, manual pressing is often used. Manual packaging is prone to the following problems in actual production process: 1. High labor intensity of workers;2. Because the thickness deviation of different products is large, manual packaging cannot control the size of pressing force, resulting in inconsistent tightness of heat shield;3. The clamping force cannot be controlled when the heat shield is packaged, and the stress of each welding point is uneven after the heat shield is spot welded, which finally affects the welding point quality;4. Manual packaging of exhaust pipe heat shield is extremely low in efficiency for mass production, which seriously restricts the batch production and delivery of products, and a large amount of labor cost needs to be invested, therefore, with the increasing demand for exhaust pipe heat shield, an advanced device is urgently needed to solve the difficult problems in the heat shield packaging process, improve product quality and efficiency, and effectively reduce production cost. UTILITARIAN CONTENT

[0004] The utility model discloses to the different personnel manual pressure of different strength in the exhaust pipe heat shield packaging process in the prior art, the clamping force cannot be controlled when packaging, resulting in uneven stress of each welding point after the heat shield is spot welded, which finally affects the welding point quality, and provides a heat shield packaging device.

[0005] To solve the above technical problems, the technical scheme adopted by the utility model is:

[0006] The application discloses a heat shield packaging device which comprises a clamp body unit, a servo pressing unit, a pressure control unit and a clamping unit; four position fixing blocks are fixedly connected on the lower end bearing surface of the clamp body unit; a lower and upper double-layer integrated lower die bearing block is movably arranged between the position fixing blocks; screw holes are arranged on the side surface of the position fixing blocks and can be matched with first fixing bolts which abut against the lower layer of the lower die bearing block; the clamping unit is arranged above the lower die bearing block; the servo pressing unit is fixedly connected to the top end of the clamp body unit; and the pressure control unit is arranged on the side surface of the clamp body unit.

[0007] Preferably, the servo pressing unit comprises a servo pressing cylinder, a pressing cylinder connecting block, a pressure conducting plate, a first pressure guide column, a T-shaped connecting block, a pressure conducting shaft, an L-shaped guide plate and a bottom pressing plate; the servo pressing cylinder is fixedly connected to the clamp body unit through the pressing cylinder connecting block; the output shaft end of the servo pressing cylinder is fixedly connected with the pressure conducting plate, and the two sides of the pressure conducting plate are fixedly connected with one end of the first pressure guide column; the other end of the first pressure guide column is movably connected with the servo pressing cylinder; and the lower part of the pressure conducting plate is detachably fixedly connected with the T-shaped connecting block.

[0008] Preferably, one end of the pressure conducting shaft is integrally fixedly connected with the T-shaped connecting block; the other end of the pressure conducting shaft is provided with external threads; the pressure conducting shaft is fixedly connected between the bottom surface of the L-shaped guide plate and the internal threads arranged on the bottom pressing plate at an adjustable depth; two parallel vertical transverse grooves are formed in the side surface of the L-shaped guide plate; the L-shaped guide plate is fixedly connected between the clamp body unit and the screws arranged in the vertical transverse grooves through clamping; one end of the second pressure guide column is fixedly connected to the two sides of the bottom pressing plate; and the other end of the second pressure guide column is movably connected with the bottom surface of the L-shaped guide plate.

[0009] Preferably, the servo pressing unit further comprises a pressure protection plate; one end of the T-shaped connecting block is movably connected with the pressure protection plate through a first pin, and the other end of the pressure protection plate is movably connected with the pressure conducting shaft through a second pin; the other end of the pressure conducting shaft is provided with external threads; the pressure conducting shaft is fixedly connected between the bottom surface of the L-shaped guide plate and the internal threads arranged on the bottom pressing plate at an adjustable depth; two parallel vertical transverse grooves are formed in the side surface of the L-shaped guide plate; the L-shaped guide plate is fixedly connected between the clamp body unit and the screws arranged in the vertical transverse grooves through clamping; one end of the second pressure guide column is fixedly connected to the two sides of the bottom pressing plate; and the other end of the second pressure guide column is movably connected with the bottom surface of the L-shaped guide plate.

[0010] Preferably, the pressure control unit comprises a pressure sensor and a control terminal; the bottom pressing plate is fixedly connected with the lower pressure sensing fixed plate through second fixing bolts on both sides; the pressure sensing fixed plate is fixedly provided with a pressure sensor; the pressure sensor and the servo cylinder are electrically connected with the control terminal; a pressure change gap is reserved between the bottom pressing plate and the pressure sensing fixed plate.

[0011] Preferably, the clamping unit comprises an upper die connecting plate, an upper die and a lower die; the upper die connecting plate and the pressure sensing fixed plate are connected through dovetail mortise and tenon connection along the Y-axis; the upper die and the upper die connecting plate are detachably and movably connected; the lower die and the lower die bearing block are detachably and movably connected.

[0012] Preferably, the lower die bottom is provided with an X-axis positioning guide protrusion, and the lower die bearing block is provided with an X-axis positioning guide groove matched with the positioning guide protrusion; the lower die and the lower die bearing block are detachably and movably connected through the positioning guide protrusion and the positioning guide groove.

[0013] Preferably, two pairs of upper and lower die positioning members are fixedly arranged on opposite sides of the upper die and the lower die; the upper and lower die positioning members comprise an upper die positioning block, a lower die positioning groove, a lower die positioning block and an upper die positioning groove.

[0014] Preferably, the positioning guide groove is fixedly provided with a positioning adjusting block at both ends.

[0015] Preferably, the pressure sensing fixed plate is detachably and fixedly connected with one end of a locking block, and the other end of the locking block is detachably and fixedly connected with the upper die connecting plate.

[0016] Compared with the prior art, the utility model realizes accurate control to the heat shield wrapping compression force, improves the appearance quality and welding point quality of the heat shield wrapping, and the automatic production mode further reduces the labor intensity of workers; the upper die and the lower die can be quickly disassembled and replaced through the corresponding connecting structure, further reducing the production cost and improving the production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0017] The utility model will be further explained in detail in combination with the drawings.

[0018] Figure 1 The utility model embodiment 1's three-dimensional structure schematic diagram;

[0019] Figure 2 The utility model embodiment 1's servo pressure unit partial three-dimensional structure schematic diagram;

[0020] Figure 3 The utility model embodiment 1's clamping unit partial three-dimensional structure schematic diagram;

[0021] Figure 4 Figure 2 is a schematic diagram of a partial improvement of the three-dimensional structure of the embodiment 2 of the present application;

[0022] Wherein, 1- fixture main unit, 101- position fixed block, 102- lower die bearing block, 103- first fixed bolt, 104- positioning guide groove, 2- servo compression unit, 201- servo cylinder, 202- cylinder connecting block, 203- pressure transmission plate, 204- first pressure guide column, 205- T-shaped connecting block, 206- pressure transmission shaft, 207- L-shaped guide plate, 208- bottom pressure plate, 209- vertical horizontal groove, 210- second fixed bolt, 211- pressure sensing fixed plate, 212- locking block, 213- pressure protection plate, 214- first pin, 215- second pin, 216- second pressure guide column, 3- pressure control unit, 301- pressure sensor 301, 302- control terminal, 4- clamping unit, 401- upper die connecting plate, 402 upper die, 403- lower die, 404- positioning guide block, 405- upper die positioning block, 406- lower die positioning groove, 407- lower die positioning block, 408- upper die positioning groove, 409- positioning adjustment block. DETAILED DESCRIPTION

[0023] In order to better understand the present application, the content of the present application will be further clearly described below in conjunction with the embodiments, but the protection content of the present application is not limited to the following embodiments only. In the following description, a large number of specific details are given in order to provide a more thorough understanding of the present application. However, it is obvious to those skilled in the art that the present application can be implemented without one or more of these details.

[0024] Embodiment 1, refer to Figure 1 , 2 , 3;

[0025] A heat shield packaging device, comprising a fixture main unit 1, a servo compression unit 2, a pressure control unit 3 and a clamping unit 4; the lower end bearing surface of the fixture main unit 1 is fixedly connected with four position fixed blocks 101, the position fixed blocks 101 are movably provided with a lower die bearing block 102 which is integrally connected in upper and lower layers; the side surface of the position fixed block 101 is provided with a threaded hole which can cooperate with the first fixed bolt 103, and the first fixed bolt 103 abuts against the lower layer of the lower die bearing block 102; the lower die bearing block 102 is provided above with the clamping unit 4; the top end of the fixture main unit 1 is fixedly connected with the servo compression unit 2; the side surface of the fixture main unit 1 is provided with the pressure control unit 3.

[0026] Preferably, the servo pressing unit 2 comprises a servo pressing cylinder 201, a pressing cylinder connecting block 202, a pressure transmission plate 203, a first pressure guide column 204, a T-shaped connecting block 205, a pressure transmission shaft 206, an L-shaped guide plate 207 and a bottom pressing plate 208; the servo pressing cylinder 201 is fixedly connected with the clamp body unit 1 through the pressing cylinder connecting block 202; the output shaft end of the servo pressing cylinder 201 is fixedly connected with the pressure transmission plate 203, and the pressure transmission plate 203 is fixedly connected with one end of the first pressure guide column 204 on both sides; the other end of the first pressure guide column 204 is movably connected with the servo pressing cylinder 201; and the T-shaped connecting block 205 is detachably fixedly connected with the lower part of the pressure transmission plate 203. The first pressure guide column plays a role of balancing force direction and guidance, and the detachable connection of each component facilitates assembly and maintenance.

[0027] Preferably, one end of the T-shaped connecting block 205 is integrally fixedly connected with the pressure transmission shaft 206; the other end of the pressure transmission shaft 206 is provided with external threads; the pressure transmission shaft 206 is fixedly connected with an adjustable depth between the bottom surface of the L-shaped guide plate 207 and the internal threads provided on the bottom pressing plate 208; two parallel vertical transverse grooves 209 are formed in the side surface of the L-shaped guide plate 207; the L-shaped guide plate is fixedly connected between the screw provided in the vertical transverse groove 209 and the clamp body unit 1 through clamping; one end of the second pressure guide column 216 is fixedly connected with both sides of the bottom pressing plate 208; the other end of the second pressure guide column 216 is movably connected with the bottom surface of the L-shaped guide plate 207. The L-shaped guide plate 207 can be vertically moved up and down relative to the clamp body unit 1 through the vertical transverse groove 209, and the length adjustment of the pressure force arm can be realized by adjusting the depth of the screw connection between the pressure transmission shaft 206 and the bottom pressing plate 208, so as to further adapt to the molds of different heights.

[0028] Preferably, the pressure control unit 3 comprises a pressure sensor 301 and a control terminal 302; the bottom pressing plate 208 is fixedly connected with the pressure sensing fixed plate 211 below through the second fixing bolts 210 on both sides; the pressure sensor 301 is fixedly arranged on the pressure sensing fixed plate 211; the pressure sensor 301 and the servo pressing cylinder 201 are electrically connected with the control terminal 302; and a pressure change gap is reserved between the bottom pressing plate 208 and the pressure sensing fixed plate 211. The pressure sensor 301 is arranged in the pressure change gap between the bottom pressing plate 208 and the pressure sensing fixed plate 211, and the pressure change data between the bottom pressing plate 208 and the pressure sensing fixed plate 211 is inducted to the control terminal 302 to realize accurate control of the downward pressure.

[0029] Preferably, the clamping unit 4 comprises an upper die connecting plate 401, an upper die 402, and a lower die 403; the upper die connecting plate 401 and the pressure sensing fixed plate 211 are connected by dovetail mortise and tenon along the Y-axis; the upper die 402 and the upper die connecting plate 403 are detachably and movably connected; and the lower die 403 and the lower die bearing block 102 are detachably and movably connected.

[0030] Preferably, the lower die 403 is provided at the bottom with an X-axis positioning guide protrusion 404, and the lower die bearing block 102 is provided with an X-axis positioning guide groove 104 matched with the positioning guide protrusion 404; the lower die 403 and the lower die bearing block 102 are detachably and movably connected through the positioning guide protrusion 404 and the positioning guide groove 104.

[0031] The upper and lower dies are adjusted relative to the X and Y axes to realize die closing, further improving the accuracy of die closing, and the detachable and movable connection allows quick replacement of the mold, thereby adapting to more other models of products to be pressed.

[0032] Preferably, the upper die 402 is fixedly provided on one side opposite to the lower die 403 with two pairs of upper and lower die positioning members matched with each other; the upper and lower die positioning members comprise an upper die positioning block 405 and a lower die positioning groove 406, and a lower die positioning block 407 and an upper die positioning groove 408.

[0033] The upper and lower die positioning members realize the initial position mold positioning function, and play a guiding and quick positioning role in the process of closing and packaging the heat shield of the upper and lower dies.

[0034] Preferably, the positioning guide groove 104 is fixedly provided at both ends with a positioning adjustment stop block 409.

[0035] Preferably, the pressure sensing fixed plate 211 is detachably and fixedly connected with a locking stop block 212 at one end, and the other end of the locking stop block 212 is detachably and fixedly connected with the upper die connecting plate 401.

[0036] The positioning adjustment stop block 409 realizes the relative position fixing function between the lower die 403 and the lower die bearing block 102. The locking stop block 212 realizes the relative position fixing function between the pressure sensing fixed plate 211 and the upper die connecting plate 401.

[0037] In use, the upper die 402 is matched with the upper die connecting plate 401 and the pressure sensing fixed plate 211 to be connected to the dovetail mortise along the Y axis, the lower die 403 is matched with the positioning and guiding protrusion 404 and the positioning and guiding recess 104 on the lower die bearing block 102 to be connected along the X axis, so that the upper and lower dies are pre-positioned, the control terminal 302 in the pressure control unit 3 is triggered, the servo pressure cylinder is started to provide a downward pressure, the two sets of upper and lower die positioning members are guided and folded to each other, and the initial position of the upper and lower dies is positioned; at this time, the positioning and adjusting block 409 and the locking block 212 are installed to fix the position of the upper and lower dies.

[0038] In formal work, the heat shield lower shell which is formed by a mold and laser cutting and bonded with high silica glass fiber felt is placed in the lower die 403 in the heat shield clamping unit 4, then the exhaust pipe is placed on the heat shield lower shell and adjusted in place, and the heat shield upper shell which is formed by a mold and laser cutting and bonded with high silica glass fiber felt is taken and placed on the exhaust pipe and adjusted in place. The control terminal 302 in the pressure control unit 3 is triggered, the servo pressure cylinder 201 is started to provide a downward pressure, the upper die 402 in the clamping unit 4 in the servo pressure unit 2 is slowly moved downward to be combined with the lower die 403, the pressure sensor 301 monitors the change of the downward pressure at any time and transmits the pressure change data to the control terminal 302, after the upper and lower dies are combined at a predetermined pressure value, the control terminal sends an instruction to the servo pressure cylinder 201 to immediately stop the downward movement. At this time, the resistance welding robot performs spot welding on the overlapping part of the heat shield, the size of the welding spot can be consistent, the distribution is uniform, the connection is firm and reliable. After the robot welding is completed, the control terminal 302 in the pressure control unit 3 is triggered, the servo pressure cylinder 201 is started to provide an upward pulling force, the upper die 402 in the clamping unit 4 in the servo pressure unit 2 is separated from the lower die 403 driven by the servo pressure cylinder 201, and the exhaust pipe after being wrapped and welded by the heat shield can be taken out.

[0039] Compared with the prior art, the heat shield wrapping and pressing force can be accurately controlled, the appearance quality and the welding spot quality of the heat shield wrapping are improved, and the automatic production mode further reduces the labor intensity of workers; the upper and lower dies can be quickly disassembled and replaced with the corresponding connecting structure, the production cost is further reduced, and the production efficiency is improved.

[0040] In the embodiment 2, Figure 4 The heat shield packaging device provided in the embodiment 2 is improved on the basis of the embodiment 1.

[0041] Further, the servo pressure unit 2 further comprises a pressure protection plate 213; the T-shaped connecting block 205 is movably connected with one end of the pressure protection plate 213 through a first pin 215, and the other end of the pressure protection plate 213 is movably connected with the pressure conduction shaft 206 through a second pin 215;

[0042] The other end of the pressure conducting shaft 206 is provided with external threads; the pressure conducting shaft 206 is fixedly connected through an adjustable depth between the bottom surface of the L-shaped guide plate 207 and the internal threads provided on the bottom pressing plate 208; two parallel vertical transverse grooves 209 are formed in the side surface of the L-shaped guide plate 207; the L-shaped guide plate 207 is fixedly connected between the clamp body unit 1 and the screws provided in the vertical transverse grooves 209 through clamping; the bottom pressing plate 208 is fixedly connected with the first pressure guide column 215 on both sides; the other end of the first pressure guide column 215 is fixedly connected with the second pressure guide column 216; the other end of the second pressure guide column 216 is movably connected with the bottom surface of the L-shaped guide plate 207.

[0043] By setting the pressure protection plate, the inconsistent pressure conducting direction caused by assembly error during assembly is further avoided, and the pressure conducting jamming and obstruction are avoided, and the service life of the equipment is affected. By sacrificing part of the downward pressure in advance, the direction of the downward pressure before being conducted from the servo cylinder to the L-shaped guide plate is changed, the problem of pressure conducting jamming and obstruction is further reduced, and the service life of the equipment is improved.

[0044] Finally, it should be explained that the above examples are only used to illustrate the technical solutions of the present application, but not to limit it. Other modifications or equivalent replacements to the technical solutions of the present application made by those skilled in the art should be covered in the scope of the claims of the present application, as long as they do not deviate from the spirit and scope of the technical solutions of the present application.

Claims

1. A heat shield packaging device, characterized by: Including clamp body unit, servo compression unit, pressure control unit and clamping unit;The lower end of the clamp body unit bearing surface is fixedly connected with four position fixed blocks, the upper and lower double-layer integrated lower die bearing block is movably arranged between the position fixed blocks;The side of the position fixed block is provided with a threaded hole, the threaded hole can cooperate with the first fixed bolt, the first fixed bolt abuts against the lower layer of the lower die bearing block;The clamping unit is arranged above the lower die bearing block;The servo compression unit is fixedly connected to the top end of the clamp body unit;The pressure control unit is arranged on the side of the clamp body unit.

2. A heat shield packaging device according to claim 1, wherein: The servo compression unit comprises a servo cylinder, a cylinder connecting block, a pressure transmission plate, a first pressure guide column, a T-shaped connecting block, a pressure transmission shaft, an L-shaped guide plate and a bottom pressure plate;The servo cylinder is fixedly connected with the clamp body unit through the cylinder connecting block;The servo cylinder output shaft end is fixedly connected with the pressure transmission plate, and the first pressure guide column is fixedly connected with one end of the pressure transmission plate on both sides;The other end of the first pressure guide column is movably connected with the servo cylinder;The lower part of the pressure transmission plate is detachably fixedly connected with the T-shaped connecting block.

3. A heat shield packaging device according to claim 2, wherein: One end of the T-shaped connecting block is integrally fixedly connected with the pressure transmission shaft;The other end of the pressure transmission shaft is provided with external threads;The pressure transmission shaft is fixedly connected between the bottom surface of the L-shaped guide plate and the inner threads arranged on the bottom pressure plate with adjustable depth;Two parallel vertical transverse grooves are formed in the side of the L-shaped guide plate;The L-shaped guide plate is fixedly connected between the clamp body unit and the screws arranged in the vertical transverse grooves through clamping;The bottom pressure plate is fixedly connected with one end of the second pressure guide column on both sides;The other end of the second pressure guide column is movably connected with the bottom surface of the L-shaped guide plate.

4. A heat shield packaging device according to claim 2, wherein: The servo compression unit further comprises a pressure protection plate;One end of the T-shaped connecting block is movably connected with the pressure protection plate through a first pin, and the other end of the pressure protection plate is movably connected with the pressure transmission shaft through a second pin;The other end of the pressure transmission shaft is provided with external threads;The pressure transmission shaft is fixedly connected between the bottom surface of the L-shaped guide plate and the inner threads arranged on the bottom pressure plate with adjustable depth;Two parallel vertical transverse grooves are formed in the side of the L-shaped guide plate;The L-shaped guide plate is fixedly connected between the clamp body unit and the screws arranged in the vertical transverse grooves through clamping;The bottom pressure plate is fixedly connected with one end of the second pressure guide column on both sides;The other end of the second pressure guide column is movably connected with the bottom surface of the L-shaped guide plate.

5. A heat shield packaging device according to claim 3 or 4, wherein: The pressure control unit comprises a pressure sensor and a control terminal;The bottom pressure plate is fixedly connected with the pressure sensing fixed plate below through the second fixed bolts on both sides;The pressure sensor is fixedly arranged on the pressure sensing fixed plate;The pressure sensor and the servo cylinder are electrically connected with the control terminal;A pressure change gap is reserved between the bottom pressure plate and the pressure sensing fixed plate.

6. A heat shield packaging device according to claim 5, wherein: The clamping unit comprises an upper die connecting plate, an upper die and a lower die; the upper die connecting plate and the pressure sensing fixed plate are connected through dovetail mortise and tenon along the Y axis; the upper die and the upper die connecting plate are detachably and movably connected; the lower die and the lower die bearing block are detachably and movably connected.

7. A heat shield packaging device according to claim 6, wherein: The lower die bottom is provided with an X-axis positioning guide protrusion, and the lower die bearing block is provided with an X-axis positioning guide groove matched with the positioning guide protrusion; the lower die and the lower die bearing block are detachably and movably connected through the positioning guide protrusion and the positioning guide groove.

8. A heat shield packaging device according to claim 7, wherein: Two pairs of upper and lower die positioning members are fixedly arranged on the opposite side of the upper die and the lower die; the upper and lower die positioning members comprise an upper die positioning block, a lower die positioning groove, a lower die positioning block and an upper die positioning groove.

9. A heat shield packaging device according to claim 7, wherein: The positioning guide groove is fixedly provided with a positioning adjusting block at both ends.

10. The heat shield packaging device of claim 6, wherein: The pressure sensing fixed plate is detachably and fixedly connected with a locking block at one end, and the other end of the locking block is detachably and fixedly connected with the upper die connecting plate.

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