A welding positioning device for an environmental test chamber

Abstract

The present invention relates to the field of environmental test chamber welding technology, and in particular to an environmental test chamber welding positioning device, which comprises a base, a central fixing piece, a support frame, a retractable frame and a push frame with through holes penetrating the top and bottom surfaces; the support frame rotates ninety degrees based on the central axis of a horizontal rotating shaft located at its right end; the retractable frame is vertically slidably plugged into the inner wall of the support frame, and the outer edge of the retractable frame is fixedly connected with a plurality of elastic metal blocks arranged along the circumference of the retractable frame, the elastic metal blocks are inclined toward the outside of the retractable frame, and the push frame is vertically slidably plugged into the inner side surface of the elastic metal block and the top surface of the retractable frame; the inner side surface of the retractable frame is fixedly connected with a plurality of fixed blocks, and a suction cup is vertically slidably plugged in the fixed block, and the bottom of the suction cup extends downward to below the fixed block. The invention can facilitate the alignment of the back plate and the frame, ensure the flatness of the back plate, facilitate assembly and welding, and improve the degree of automation.

Description

Technical Field

[0001] The invention relates to the technical field of environmental test chamber welding, and in particular to an environmental test chamber welding positioning device. Background Art

[0002] Environmental test chamber is an advanced laboratory equipment, which is used in many industries such as electronics, automobiles, aviation, medicine, etc. It can simulate a variety of different environmental conditions and is mainly used to test the performance and reliability of products under specific environmental conditions. According to the simulated environmental conditions, environmental test chambers can be divided into many types, including temperature test chambers, humidity test chambers, smoke test chambers, vibration test chambers, UV aging test chambers, xenon lamp aging test chambers, and ozone aging test chambers.

[0003] In the production process of environmental test chambers, the sheets are first processed into a specific shape through a bending process. Then, these bent sheets are assembled and welded to build the frame and internal structure of the environmental test chamber. Figure 8 After bending the edge of the back panel, you need to align the edge of the back panel with the frame, install the entire back panel into the frame, and then weld it from the inside.

[0004] During this process, the edge of the back panel may be deformed due to the external force during the bending process, and after the bending is completed, the edge will produce a certain degree of springback. In addition, the edge of the back panel is affected by heat and stress during welding, processing accuracy and materials, etc., which will make it difficult for the edge of the back panel to maintain a perpendicular state with the back panel body.

[0005] During the installation of the back panel, this deviation causes the edge of the back panel to interfere with the frame, making the assembly and welding process complicated. During installation, workers need to adjust the position of the back panel several times to ensure that the edge of the back panel is aligned with the frame and that the edge of the back panel is smoothly installed inside the frame. This not only consumes a lot of manpower and time, but may also affect the quality of the final product. Summary of the invention

[0006] In view of this, the present invention provides an environmental test chamber welding positioning device, aiming to solve the technical problem in the prior art that the bent back plate is difficult to align with the frame, resulting in a complicated assembly and welding process.

[0007] In order to solve the above technical problems, the present invention provides an environmental test chamber welding positioning device, which adopts the following technical solutions: an environmental test chamber welding positioning device, comprising a base, on which a centering fixing member for limiting the position of the frame, a support frame with through holes penetrating the top and bottom surfaces, a shrinking frame and a pushing frame are provided;

[0008] The base is provided with a rotation driving member for controlling the rotation of the support frame, and the support frame rotates 90 degrees based on the central axis of the horizontal rotation shaft located at the right end of the support frame;

[0009] The shrinking frame is vertically slidably inserted into the inner wall of the support frame, and the outer edge of the shrinking frame is fixedly connected with a plurality of elastic metal blocks arranged along the circumference of the shrinking frame, and the elastic metal blocks are inclined toward the outside of the shrinking frame, and the inner side of the elastic metal blocks can be connected with the outer side of the edge of the back plate, and the pushing frame is vertically slidably inserted into the inner side of the elastic metal blocks and the top surface of the shrinking frame, and the top surface of the pushing frame is connected with the bottom surface of the back plate body, and the base is provided with a pushing driving member for controlling the sliding of the pushing frame and a limit control member for controlling the synchronous movement or relative movement of the shrinking frame and the pushing frame;

[0010] The inner side of the shrink frame is fixedly connected with a plurality of fixed blocks, and a suction cup is vertically slidably inserted in the fixed block. The bottom of the suction cup extends downward to below the fixed block, and a compression spring is arranged between the bottom of the suction cup and the bottom surface of the fixed block.

[0011] By adopting the above technical solution, the shrinking frame and the pushing frame extend upward, and the back panel is placed in the placement groove formed by the shrinking frame and the pushing frame. The elastic metal block is connected to the outer side surface of the edge of the back panel. Under the pushing action of the edge of the back panel, the elastic metal block tilts outward, and the top surface of the shrinking frame is connected to the bottom surface of the back panel body. The suction cup adsorbs the bottom surface of the back panel body, and then the shrinking frame, the pushing frame and the back panel move downward synchronously. During the downward movement, the inner wall of the support frame pushes the elastic metal block, and then acts on the edge of the back panel, so that the edge of the back panel is in a vertical state. The support frame rotates, driving the back panel to move until the back panel body is in a vertical state, limiting the position of the shrinking frame, and the pushing frame pushes the back panel so that the back panel is installed in the frame. During the installation process, the support frame and the elastic metal block continue to limit the position of the edge of the back panel, keeping the edge of the back panel and the back panel body in a vertical state, so that the edge of the back panel can be smoothly installed in the frame.

[0012] The elastic metal blocks arranged in the circumferential direction are arranged, the support frame acts on the elastic metal blocks, and the elastic metal blocks act on the edge of the back plate, so that the edge of the back plate is in a vertical state with the back plate body. This structure has many advantages. The elastic metal blocks can evenly apply pressure to the edge of the back plate, which helps to reduce the occurrence of local deformation, ensure the flatness of the back plate, and can automatically correct the shape of the back plate, improve the degree of automation of the device, reduce manual operation, and improve production efficiency. It has a simple structure and is easy to maintain.

[0013] The suction cup absorbs the bottom surface of the back panel, and during the downward movement of the shrinking frame and the pushing frame, the back panel moves downward synchronously with the two. During the installation of the back panel to the frame, the position of the shrinking frame is limited, and the pushing frame pushes the back panel. During the movement, the suction cup continuously absorbs the back panel, and the compression spring between the suction cup and the fixed block is compressed. The compression spring exerts a leftward force on the suction cup, causing the suction cup to exert a leftward force on the back panel body. The pulling force of the suction cup cooperates with the thrust of the pushing frame, which helps to ensure the flatness of the back panel.

[0014] Optionally, the pushing drive member includes a moving frame that is vertically slidably inserted into the inner wall of the supporting frame and is located below the shrinking frame. The top surface of the moving frame is connected to a moving rod, which passes through the shrinking frame in a sliding connection and is connected to the bottom surface of the pushing frame. A pushing cylinder is connected to the bottom of the supporting frame, and the output end of the pushing cylinder is connected to the bottom surface of the moving frame.

[0015] The adoption of the above technical solution is conducive to a reasonable structural layout.

[0016] Optionally, two support plates arranged in parallel in the front-to-back direction are fixedly connected to the upper surface of the base, the support plates can abut against the left side surface of the frame, and the rotating shaft is rotatably connected between the two support plates.

[0017] By adopting the above technical solution, the support plate provides support for the rotating shaft and can limit the position of the frame.

[0018] Optionally, the moving rod is provided in plurality, and the plurality of moving rods are arranged along the circumference of the moving frame;

[0019] The limit control component includes a limit frame connected to the retractable frame for sliding along the left and right directions. The limit frame is composed of two horizontal bars arranged in parallel in the front and rear directions and vertical bars connected to the right ends of the two horizontal bars. The horizontal bars are provided with moving grooves that penetrate vertically and allow the moving rods to slide vertically. The moving rods located on the front and rear sides of the moving frame are provided with limit grooves that extend along the left and right directions and allow the horizontal bars to slide left and right.

[0020] By adopting the above technical solution, multiple moving rods are conducive to the stability of the operation of the lifting device. When the cross bar abuts against the inner wall of the limit groove, the inner wall of the limit groove has a pushing effect on the cross bar, and the limit frame and the push frame move synchronously. When the moving groove corresponds to the circumferential side wall of the moving rod, the push frame and the shrinking frame move relative to each other. By changing the position of the limit frame, the shrinking frame and the push frame can be controlled to move synchronously or relative to each other.

[0021] Optionally, the limit control component also includes a guide rod fixedly connected to the retraction frame, the vertical rod is slidably mounted on the guide rod, a return spring is provided between the left end of the guide rod and the left side wall of the vertical rod, a top block sliding along the left and right directions is provided inside the right end of the support frame, the top block can abut against the top rod at the right end of the vertical rod, push rods are connected to both ends of the top block, the end of the push rod extends to the outside of the support frame, a sliding groove for the push rod to slide is opened on the support plate, the sliding groove is arc-shaped, and the sliding groove is offset from bottom to top in a direction away from the center of the rotating shaft.

[0022] By adopting the above technical solution, as the support frame rotates, the push rod and the top block move along the sliding groove, and the sliding groove deviates from the center of the rotation axis from bottom to top, that is, during the rotation process, the top block slides relative to the support frame, the top block approaches the push rod, and the top block pushes the push rod upward, so that the push rod and the limit frame move, that is, the position of the limit frame is changed, and the reset spring makes the limit frame have a movement tendency of automatic reset, which is convenient for multiple use.

[0023] Optionally, a stabilizing spring is sleeved on the moving rods located on the left and right sides of the moving frame, and two ends of the stabilizing spring are respectively fixedly connected to the bottom surface of the shrinking frame and the top surface of the moving frame.

[0024] The adoption of the above technical solution helps to improve the stability of the device.

[0025] Optionally, the rotation driving member includes a hydraulic push rod, the hydraulic push rod is hinged to the upper surface of the base, and the output end of the hydraulic push rod is hinged to the outer side surface of the support frame.

[0026] Optionally, the center fixing member includes a bidirectional screw and two fixing seats, the two fixing seats are respectively threadedly connected to the positive thread section and the negative thread section of the bidirectional screw, a fixing rod is fixedly connected to the base, and the fixing seat is slidably sleeved on the fixing rod.

[0027] In summary, the present invention includes the following beneficial technical effects:

[0028] 1. Set circumferentially arranged elastic metal blocks, the support frame acts on the elastic metal blocks, and the elastic metal blocks act on the edge of the back panel, so that the edge of the back panel is in a vertical state with the back panel body. During the installation process, the support frame and the elastic metal blocks continuously limit the edge position of the back panel, keep the edge of the back panel and the back panel body in a vertical state, so that the edge of the back panel can be smoothly installed inside the frame; this structure has multiple advantages. The elastic metal blocks can evenly apply pressure to the edge of the back panel, which helps to reduce the occurrence of local deformation, ensure the flatness of the back panel, and can automatically correct the shape of the back panel, improve the degree of automation of the device, reduce manual operation, and improve production efficiency. It has a simple structure and is easy to maintain.

[0029] The suction cup adheres to the bottom surface of the back panel, and during the downward movement of the shrinking frame and the pushing frame, the back panel moves downward synchronously with the two. During the installation process, the suction cup applies a leftward force to the back panel body, and the pulling force of the suction cup cooperates with the thrust of the pushing frame, which helps to ensure the flatness of the back panel.

[0030] 2. The push rod, the top block and the sliding groove are set, which can automatically limit / unlock the limit of the contraction frame and the push frame as the support frame rotates, which is beneficial to improve the degree of automation of the device and is convenient for multiple uses.

[0031] 3. Stabilizing springs are installed on the moving rods on the left and right sides of the moving frame. The two ends of the stabilizing springs are respectively fixedly connected to the bottom surface of the shrinking frame and the top surface of the moving frame to avoid the limit frame and the shrinking frame from losing their limit and accidentally sliding down. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 The overall structure of the embodiment of the present invention is shown in FIG. Figure 1 ;

[0033] Figure 2 for Figure 1 A partial enlarged schematic diagram of part A;

[0034] Figure 3 The overall structure of the embodiment of the present invention is shown in FIG. Figure 2 ;

[0035] Figure 4 An exploded schematic diagram of a push frame, a shrink frame, a limit frame, a moving frame and a supporting frame in an embodiment of the present invention;

[0036] Figure 5 An exploded schematic diagram of a shrinking frame and a limiting frame in an embodiment of the present invention;

[0037] Figure 6 It is a schematic diagram of assembling the push frame, the shrinking frame and the limiting frame in an embodiment of the present invention;

[0038] Figure 7 for Figure 6 A partial enlarged schematic diagram of part B;

[0039] Figure 8 It is an exploded schematic diagram of the frame and the back plate in an embodiment of the present invention.

[0040] Explanation of the accompanying drawings: 1. base; 101. center fixing piece; 12. bidirectional screw; 13. fixing seat; 14. fixing rod; 2. support frame; 21. rotating shaft; 22. support plate; 3. rotating drive member; 4. contraction frame; 41. stabilizing spring; 5. pushing frame; 6. elastic metal block; 7. suction cup; 71. fixing block; 72. compression spring; 8. pushing drive member; 81. moving frame; 82. moving rod; 83. pushing cylinder; 9. limit control member; 91. limit frame; 911. cross bar; 912. vertical bar; 92. moving groove; 93. limit groove; 94. guide rod; 95. reset spring; 96. top block; 97. top rod; 98. push rod; 99. sliding groove; 10. frame; 11. back plate; 111. back plate body; 112. back plate edge. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0042] The following is combined with Figure 1 -Attached Figure 8 The present invention is described in further detail.

[0043] The embodiment of the present invention discloses a welding positioning device for an environmental test chamber. Figures 1 to 8 A welding positioning device for an environmental test chamber includes a base 1, a centering fixing member 101, a support frame 2, a rotating driving member 3, a shrinking frame 4, a pushing frame 5, a plurality of elastic metal blocks 6, a plurality of suction cups 7, a pushing driving member 8 and a limit control member 9.

[0044] The base 1 is placed on a horizontal ground, the center fixing member 101 is arranged on the base 1 and used to limit the position of the frame 10, the support frame 2 is rotatably connected to the base 1, the rotation driving member 3 is used to control the rotation of the support frame 2, the contraction frame 4 and the push frame 5 are arranged in the support frame 2, a plurality of elastic metal blocks 6 are arranged along the circumference of the contraction frame 4 and connected to the outer edge of the contraction frame 4, the suction cup 7 is connected to the inner side wall of the contraction frame 4, and the push driving member 8 and the limit control member 9 cooperate to control the position of the contraction frame 4 and the push frame 5. The device can adjust the position of the back panel edge 112 and the back panel body 111, and complete the installation of the back panel 11 and the frame 10, realize the automation of the installation process, save manpower, and make the installation process more stable.

[0045] Reference Figure 1 and Figure 3Specifically, the center fixing member 101 includes a bidirectional screw 12, two fixing seats 13 and a fixing rod 14. The bidirectional screw 12 is horizontally arranged and rotatably connected to the base 1. The axial direction of the bidirectional screw 12 extends along the front-to-back direction. The bottoms of the two fixing seats 13 are threadedly connected to the bidirectional screw 12, and the two fixing seats 13 are respectively threadedly connected to the positive thread segment and the negative thread segment of the bidirectional screw 12. The fixing rod 14 is fixedly connected to the base 1. The fixing rod 14 is arranged parallel to the bidirectional screw 12 and spaced apart. The bottoms of the two fixing seats 13 are slidably sleeved on the fixing rod 14.

[0046] A handle is fixedly connected to one end of the bidirectional screw 12. By turning the handle, the bidirectional screw 12 is driven to rotate, and the two fixing seats 13 move closer to each other or away from each other. The two fixing seats 13 cooperate with each other to limit the position of the frame 10 and reduce the accidental tilting of the frame 10 during the installation of the back plate 11. The two fixing seats 13 are adjusted synchronously to help keep the frame 10 in the middle of the base 1, facilitate alignment of the frame 10 and the back plate 11, and simplify the operation process. The bidirectional screw 12 has a self-locking feature. After the bidirectional screw 12 stops rotating, the two fixing seats 13 are kept in the desired position, which is conducive to the reasonable layout of the device structure, easy to use, and convenient for maintenance.

[0047] Reference Figure 4 The top and bottom surfaces of the support frame 2 are penetrated by through holes, and a rotating shaft 21 is fixedly connected to the right end of the support frame 2. The rotating shaft 21 is horizontally arranged, and the central axis of the rotating shaft 21 extends along the front-to-back direction. The support frame 2 rotates ninety degrees based on the central axis of the rotating shaft 21. When the support frame 2 is rotated to a vertical state, the support frame 2 is connected to the left side of the frame 10.

[0048] Reference Figure 2 Furthermore, two support plates 22 arranged in parallel in the front-to-back direction are fixedly connected to the upper surface of the base 1, and the rotation shaft 21 is rotatably connected between the two support plates 22, and the two support plates 22 are used to support the rotation shaft 21. At the same time, the right side of the support plate 22 can abut against the left side of the frame 10, that is, the support plate 22 can limit the position of the frame 10, so as to facilitate the alignment of the position of the frame 10, so as to avoid affecting the normal operation of the device after the position of the frame 10 is offset, thereby improving the convenience and stability of the device.

[0049] Reference Figure 1 Specifically, the rotation driving member 3 is used to control the rotation of the support frame 2. The rotation driving member 3 includes a hydraulic push rod, which is hinged to the left end of the upper surface of the base 1, and the output end of the hydraulic push rod is hinged to the outer side of the support frame 2. There are two hydraulic push rods, which are arranged in parallel in the front and rear directions. When the hydraulic push rod is started, the output end of the hydraulic push rod is extended or retracted, and the rotation of the support frame 2 can be controlled.

[0050] Reference Figure 4 and Figure 5 The top and bottom surfaces of the shrinking frame 4 are penetrated by through holes, and the outer side surface of the shrinking frame 4 is vertically slidably connected to the inner side wall of the support frame 2. A plurality of elastic metal blocks 6 are arranged along the circumference of the shrinking frame 4 and fixedly connected to the outer edge of the shrinking frame 4. When the shrinking frame 4 moves upward and the elastic metal block 6 is located above the support frame 2, the elastic metal block 6 tilts toward the outer side of the support frame 2. When the shrinking frame 4 moves downward and the elastic metal block 6 is located inside the support frame 2, the inner side wall of the support frame 2 limits the position of the elastic metal block 6, so that the elastic metal block 6 is in a vertical state.

[0051] Reference Figure 3 and Figure 4 The top and bottom surfaces of the push frame 5 are penetrated by through holes. The push frame 5 is arranged above the shrink frame 4, the outer side surface of the push frame 5 is slidably connected with the inner side surface of the elastic metal block 6, and the bottom surface of the push frame 5 is connected with the top surface of the shrink frame 4. When the bottom surface of the push frame 5 is connected with the top surface of the shrink frame 4, the inner side surface of the elastic metal block 6 and the top surface of the push frame 5 cooperate to form a placement groove for placing the back plate 11.

[0052] Reference Figure 4 and Figure 5 , multiple suction cups 7 are arranged along the circumference of the shrink frame 4, the suction cups 7 are arranged at the inner side wall of the shrink frame 4, the inner side wall of the shrink frame 4 is connected with multiple fixing blocks 71, multiple fixing blocks 71 are arranged along the circumference of the shrink frame 4, multiple fixing blocks 71 correspond to multiple suction cups 7 one by one, the suction cups 7 are vertically slidably inserted into the fixing blocks 71, the bottom ends of the suction cups 7 extend below the fixing blocks 71, and compression springs 72 are arranged between the bottom ends of the suction cups 7 and the bottom surface of the fixing blocks 71. The suction cups 7 can be connected to the bottom surface of the back plate body 111 and adsorb the back plate body 111.

[0053] Reference Figure 1 , Figure 3 and Figure 4, the shrinking frame 4 and the pushing frame 5 move upward, the top surface of the pushing frame 5 is flush with the top surface of the supporting frame 2, the elastic metal block 6 extends above the supporting frame 2, and the elastic metal block 6 tilts toward the outside of the supporting frame 2, placing the back panel 11 in the placement groove, the bottom surface of the back panel body 111 is in contact with the top surface of the pushing frame 5, the outer side surface of the back panel edge 112 is in contact with the inner side surface of the elastic metal block 6, and the suction cup 7 is in contact with the bottom surface of the back panel body 111. The shrinking frame 4, the pushing frame 5 and the back panel 11 move downward synchronously, the elastic metal block 6 is retracted into the supporting frame 2, the inner wall of the supporting frame 2 is in contact with the outer side surface of the elastic metal block 6, so that the elastic metal block 6 is in a vertical state, and multiple elastic metal blocks 6 act on the back panel edge 112, so that the back panel edge 112 is in a vertical setting state. The support frame 2 rotates to a vertical state, the back panel 11 is connected to the left side of the frame 10, the elastic metal block 6 is connected to the left side of the frame 10, the position of the shrinkage frame 4 is limited, and the push frame 5 pushes the back panel 11 to install the back panel 11 into the frame 10. During the installation process, the support frame 2 and the elastic metal block 6 continue to limit the position of the back panel edge 112, so that the back panel edge 112 and the back panel body 111 remain in a vertical state.

[0054] The elastic metal block 6 can evenly apply pressure to the edge of the back plate 11, which helps to reduce the occurrence of local deformation, ensure the flatness of the back plate 11, and can automatically correct the shape of the back plate 11, improve the degree of automation of the device, reduce manual operation, improve production efficiency, and has a simple structure and is easy to maintain. The suction cup 7 adsorbs the bottom surface of the back plate 11, and during the downward movement of the shrinking frame 4 and the pushing frame 5, the back plate 11 is moved downward synchronously with the two. During the installation of the back plate 11 to the frame 10, the position of the shrinking frame 4 is limited, and the pushing frame 5 pushes the back plate 11. During the movement, the suction cup 7 continues to adsorb the back plate 11, and the compression spring 72 between the suction cup 7 and the fixed block 71 is compressed. The compression spring 72 has a leftward force on the suction cup 7, so that the suction cup 7 applies a leftward force to the back plate body 111. The pulling force of the suction cup 7 cooperates with the thrust of the pushing frame 5, which helps to ensure the flatness of the back plate 11.

[0055] Reference Figure 4Specifically, the push drive member 8 is used to control the sliding of the push frame 5. The push drive member 8 includes a moving frame 81, a plurality of moving rods 82 and four pushing cylinders 83. The top and bottom surfaces of the moving frame 81 are penetrated by through holes, the moving frame 81 is arranged below the contraction frame 4, and the outer side surface of the moving frame 81 is slidably inserted into the inner side surface of the support frame 2. A plurality of moving rods 82 are arranged along the circumference of the moving frame 81, the moving rods 82 are fixedly connected to the top surface of the moving frame 81, and the moving rods 82 pass through the contraction frame 4 and are fixedly connected to the bottom surface of the pushing frame 5 in a sliding connection. Four pushing cylinders 83 are arranged along the circumference of the moving frame 81, the pushing cylinders 83 are fixedly connected to the support frame 2, and the output end of the pushing cylinders 83 is upwardly connected to the bottom surface of the moving frame 81. By starting the pushing cylinders 83, the reciprocating movement of the moving frame 81 and the pushing frame 5 can be controlled. With this structure, the stability of the device can be improved, the uniformity of the force on the back plate body 111 can be ensured, and the flatness of the back plate body 111 can be ensured.

[0056] Specifically, the limit control member 9 is used to control the synchronous movement or relative sliding of the retracting frame 4 and the pushing frame 5 .

[0057] Reference Figure 4 , Figure 5 and Figure 7 The limit control component 9 includes a limit frame 91 , a moving groove 92 and a limit groove 93 .

[0058] The limit frame 91 is located between the shrinking frame 4 and the moving frame 81. The limit frame 91 is composed of two horizontal bars 911 arranged in parallel in the front-to-back direction and a vertical bar 912 connected to the right ends of the two horizontal bars 911. The two horizontal bars 911 are slidably connected to the inner side surface of the shrinking frame 4 along the left-right direction. A plurality of moving grooves 92 are provided on the two horizontal bars 911. The plurality of moving grooves 92 correspond one-to-one to the moving rods 82 located at the front and rear sides of the moving frame 81. The moving grooves 92 penetrate the horizontal bars 911 in the vertical direction. The moving grooves 92 correspond to the side walls of the moving rods 82. The circumferential side walls of the moving rods 82 are slidably inserted into the moving grooves 92. The moving rods 82 located at the front and rear sides of the moving frame 81 are provided with limit grooves 93. The limit grooves 93 penetrate the moving rods 82 in the left-to-right direction. The horizontal bars 911 are slidably inserted into the limit grooves 93. Among them, Figure 7 The cross bar 911 is cut away to expose the limit groove 93. The complete cross bar 911 abuts against the inner wall of the limit groove 93, so that the limit frame 91, the contraction frame 4 and the push frame 5 slide synchronously. Figure 7 The middle cross bar 911 continues to move leftward, and the moving rod 82 corresponds to the moving groove 92, so that the limit between the pushing frame 5 and the limit frame 91 is lost, so that the pushing frame 5 and the shrinking frame 4 can move relative to each other.

[0059] When the cross bar 911 abuts against the inner wall of the limiting groove 93, the inner wall of the limiting groove 93 has a pushing effect on the cross bar 911, and the limiting frame 91 moves synchronously with the pushing frame 5. When the moving groove 92 corresponds to the circumferential side wall of the moving rod 82, the pushing frame 5 moves relative to the shrinking frame 4. By changing the position of the limiting frame 91, the shrinking frame 4 and the pushing frame 5 can be controlled to move synchronously or relatively.

[0060] Reference Figure 4 , Figure 5 and Figure 6 The limit control member 9 also includes a guide rod 94 , a return spring 95 , a top block 96 , a top rod 97 , a push rod 98 and a sliding groove 99 .

[0061] The guide rod 94 is fixedly connected to the right side of the inner wall of the contraction frame 4, the vertical rod 912 is slidably sleeved on the guide rod 94, the left end of the guide rod 94 extends to the left end of the vertical rod 912, the return spring 95 is sleeved on the guide rod 94, and the two ends of the return spring 95 are respectively connected to the left end of the guide rod 94 and the left side of the vertical rod 912. The top block 96 is arranged inside the right end of the support block, and the top block 96 is slidably arranged inside the right end of the support frame 2 along the left and right directions. The top rod 97 is fixedly connected to the right side of the vertical rod 912, and the top block 96 can be abutted against the right end of the top rod 97 after moving a distance to the left. There are two push rods 98, and the two push rods 98 are respectively connected to the two ends of the top block 96, and the ends of the push rods 98 extend to the outside of the support frame 2, and the ends of the push rods 98 are slidably connected to the support frame 2 along the left and right directions. There are two sliding grooves 99 corresponding to the two support plates 22 one by one. The sliding grooves 99 are arc-shaped. The sliding grooves 99 are offset from bottom to top in the direction away from the center of the rotating shaft 21. The sliding grooves 99 are for the push rod 98 to slide, and are restricted by the shape of the sliding grooves 99. When the support frame 2 rotates upward, the side walls of the sliding grooves 99 have a pushing effect on the push rod 98, causing the push rod 98 and the top block 96 to slide relative to the support frame 2.

[0062] As the support frame 2 rotates, the push rod 98 and the top block 96 move along the sliding groove 99, and the sliding groove 99 deviates from the center of the rotating shaft 21 from bottom to top, that is, during the rotation process, the top block 96 slides relative to the support frame 2, and the top block 96 approaches the push rod 98, and the top block 96 pushes the push rod 98 upward, so that the push rod 97 and the limit frame 91 move, that is, the position of the limit frame 91 is changed. The reset spring 95 makes the limit frame 91 have a movement tendency of automatic reset, which is convenient for multiple uses.

[0063] Reference Figure 5 and Figure 6Furthermore, after the back plate 11 is installed, when the device is reset, the push frame 5 is retracted into the support frame 2. As the support frame 2 rotates downward, the limit frame 91 moves downward, and the cross bar 911 gradually abuts against the inner wall of the limit groove 93. However, there is a risk of unstable abutment between the cross bar 911 and the inner wall of the limit groove 93 at this time. Stabilizing springs 41 are mounted on the moving rods 82 on the left and right sides of the moving frame 81. The two ends of the stabilizing spring 41 are respectively fixedly connected to the bottom surface of the shrinking frame 4 and the top surface of the moving frame 81 to avoid the limit frame 91 and the shrinking frame 4 from losing their limit and accidentally sliding down as much as possible.

[0064] The implementation principle of a welding positioning device for an environmental test chamber according to an embodiment of the present invention is as follows:

[0065] Reference Figure 1 , Figure 3 and Figure 8 , place the frame 10 between the two fixing seats 13, rotate the bidirectional screw 12, the two fixing seats 13 approach each other, and the two fixing seats 13 cooperate with each other to limit the position of the frame 10.

[0066] Reference Figure 2 and Figure 3 , the support frame 2 is initially placed horizontally, at which time the push rod 98 is located at the bottom of the sliding groove 99, the top block 96 is located on the side away from the top rod 97, the cross bar 911 is in contact with the inner wall of the limit groove 93, and the limit frame 91, the contraction frame 4 and the push frame 5 move vertically synchronously. The push cylinder 83 is started to drive the contraction frame 4 and the push frame 5 to move upward, the elastic metal block 6 moves to the top of the support frame 2, and the elastic metal block 6 tilts toward the outside of the support frame 2. The back plate 11 is placed in the contraction frame 4, the outer side surface of the back plate edge 112 is connected to the inner side surface of the elastic metal block 6, the bottom surface of the back plate body 111 is connected to the top surface of the push frame 5, and the suction cup 7 adsorbs the bottom surface of the back plate 11.

[0067] Start the pushing cylinder 83 to drive the retracting frame 4 and the pushing frame 5 to move downward synchronously. During the downward movement, the inner wall of the support frame 2 abuts against the outer side of the elastic metal block 6. Under the action of the inner wall of the support frame 2, the elastic metal block 6 is in a vertical state. Multiple elastic metal blocks 6 act evenly on the back panel edge 112, so that the back panel edge 112 and the back panel main body 111 are in a vertical state.

[0068] Reference Figure 2 , Figure 5 and Figure 6, start the hydraulic push rod to drive the support frame 2 to rotate. During the upward rotation of the support frame 2, the push rod 98 slides along the sliding groove 99. Restricted by the shape of the sliding groove 99, the push rod 98 and the top block 96 are close to the cross bar 911 until the top block 96 abuts against the top rod 97. As the top block 96 continues to move upward, the top block 96 moves the top rod 97 and the limit frame 91 upward, and the limit frame 91 gradually separates from the inner wall of the limit groove 93. When the support frame 2 rotates to a vertical state, the limit frame 91 separates from the inner wall of the limit groove 93, the outer circumferential wall of the moving rod 82 corresponds to the moving groove 92, and the contraction frame 4 and the push frame 5 are in a state where relative movement can occur. The contraction frame 4 is acted upon by the stabilizing spring 41, so that during the rotation of the support frame 2, the contraction frame 4 is stably connected to the push frame 5.

[0069] Reference Figure 1 , start the push cylinder 83, move the moving frame 81 and the push frame 5, and the push frame 5 pushes the back plate 11 toward the inside of the frame 10. During the pushing process, the left and right sides of the shrinking frame 4 are respectively affected by the stabilizing spring 41 and the side contact of the frame 10, so that the shrinking frame 4 is in a static state relative to the supporting frame 2, and multiple elastic metal blocks 6 continue to limit the edge of the back plate 11, so that the back plate edge 112 and the back plate body 111 remain in a vertical state. During the pushing process, the suction cup 7 keeps adsorbing the back plate body 111. As the back plate 11 moves, the suction cup 7 moves, so that the compression spring 72 on the suction cup 7 is compressed, and the left end of the compression spring 72 applies a leftward force to the left end of the suction cup 7, so that the suction cup 7 applies a leftward force to the back plate 11, which helps to ensure that the back plate body 111 is in a flat state.

[0070] After the back plate 11 is installed, the suction cup 7 is no longer adsorbed. The push cylinder 83 is started, the push frame 5 is retracted into the support frame 2, the hydraulic push rod is started, the support frame 2 rotates, the push rod 98 and the top block 96 slide along the sliding groove 99, the top block 96 moves downward, and under the action of the reset spring 95, the limit frame 91 moves, and the vertical rod 912 abuts against the inner wall of the limit groove 93, so that the shrinking frame 4 and the pushing frame 5 are in a synchronous moving state. In addition, during the rotation of the support frame 2, the stabilizing spring 41 also acts on the shrinking frame 4, so that the shrinking frame 4 maintains a synchronous moving state with the pushing frame 5, thereby improving the stability of the device.

[0071] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0072] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A welding positioning device for an environmental test chamber, comprising a base, on which a centering fixing member for limiting the position of a frame is provided, characterized in that: Also includes: The top and bottom surfaces of the support frame, the shrinking frame and the pushing frame are penetrated by through holes; The base is provided with a rotation driving member for controlling the rotation of the support frame, and the support frame rotates 90 degrees based on the central axis of the horizontal rotation shaft located at the right end of the support frame; The shrinking frame is vertically slidably inserted into the inner wall of the support frame, and the outer edge of the shrinking frame is fixedly connected with a plurality of elastic metal blocks arranged along the circumference of the shrinking frame, and the elastic metal blocks are inclined toward the outside of the shrinking frame, and the inner side of the elastic metal blocks can be connected with the outer side of the edge of the back plate, and the pushing frame is vertically slidably inserted into the inner side of the elastic metal blocks and the top surface of the shrinking frame, and the top surface of the pushing frame is connected with the bottom surface of the back plate body, and the base is provided with a pushing driving member for controlling the sliding of the pushing frame and a limit control member for controlling the synchronous movement or relative movement of the shrinking frame and the pushing frame; The inner side of the shrink frame is fixedly connected with a plurality of fixed blocks, and a suction cup is vertically slidably inserted in the fixed block, and the bottom of the suction cup extends downward to below the fixed block, and a compression spring is arranged between the bottom of the suction cup and the bottom surface of the fixed block; The push driving member includes a moving frame which is vertically slidably inserted into the inner wall of the supporting frame and is located below the shrinking frame, the top surface of the moving frame is connected to a moving rod, the moving rod passes through the shrinking frame in a sliding connection and is connected to the bottom surface of the pushing frame, the bottom of the supporting frame is connected to a pushing cylinder, and the output end of the pushing cylinder is connected to the bottom surface of the moving frame; The upper surface of the base is fixedly connected with two support plates arranged in parallel in the front-to-back direction, the support plates can abut against the left side of the frame, and the rotating shaft is rotatably connected between the two support plates; There are multiple moving rods, and the multiple moving rods are arranged along the circumference of the moving frame; The limit control component includes a limit frame connected to the retractable frame for sliding along the left and right directions. The limit frame is composed of two horizontal bars arranged in parallel in the front and rear directions and vertical bars connected to the right ends of the two horizontal bars. The horizontal bars are provided with moving grooves that penetrate vertically and allow the moving rods to slide vertically. The moving rods located on the front and rear sides of the moving frame are provided with limit grooves that extend along the left and right directions and allow the horizontal bars to slide left and right.

2. The welding positioning device of the environmental test chamber according to claim 1, characterized in that: The limit control component also includes a guide rod fixedly connected to the contraction frame, the vertical rod is slidably sleeved on the guide rod, a return spring is provided between the left end of the guide rod and the left side wall of the vertical rod, a top block sliding along the left and right directions is provided inside the right end of the support frame, the top block can abut against the top rod at the right end of the vertical rod, push rods are connected to both ends of the top block, the end of the push rod extends to the outside of the support frame, a sliding groove for the push rod to slide is opened on the support plate, the sliding groove is arc-shaped, and the sliding groove is offset from bottom to top in a direction away from the center of the rotating shaft.

3. The welding positioning device of the environmental test chamber according to claim 2, characterized in that: The moving rods located at the left and right sides of the moving frame are sleeved with stabilizing springs, and the two ends of the stabilizing springs are respectively fixedly connected to the bottom surface of the contraction frame and the top surface of the moving frame.

4. The welding positioning device of the environmental test chamber according to claim 1, characterized in that: The rotating driving member comprises a hydraulic push rod, the hydraulic push rod is hinged to the upper surface of the base, and the output end of the hydraulic push rod is hinged to the outer side surface of the supporting frame.

5. The welding positioning device of an environmental test chamber according to claim 1, characterized in that: The center fixing piece includes a bidirectional screw and two fixing seats, the two fixing seats are respectively threadedly connected to the positive thread section and the negative thread section of the bidirectional screw, a fixing rod is fixedly connected to the base, and the fixing seat is slidably sleeved on the fixing rod.

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