A clamping device for automatic welding of an injection molding machine door frame

Abstract

The utility model discloses a kind of clamping devices for automatic welding of injection molding machine door frame, including pressure plate and pressure clamp clamping device, it is characterized by: the pressure plate is provided with multiple load-bearing beams for the load-bearing of injection molding machine door frame;Multiple pressure clamp clamping devices for clamping injection molding machine door frame component are provided on the pressure plate;Movable type clamping injection molding machine door frame component pneumatic clamping platform is provided on the pressure plate, the bottom of the pneumatic clamping platform is integrally provided with sliding block;The pressure plate is provided with guide rail compatible with the sliding block, the sliding block moves along the guide rail.The utility model is positioned by workpiece and automatic welding means, improves the installation accuracy of injection molding machine door frame, ensures the consistency of finished product, greatly reduces the possibility of finished product unqualified, improves production efficiency, reduces the production cost of enterprise.

Description

Technical Field

[0001] This utility model belongs to the field of door frame welding technology, specifically relating to a clamping device for automatic welding of injection molding machine door frames. Background Technology

[0002] Injection molding machine doors are openable or movable protective devices used to isolate the molding area on injection molding machines. They typically consist of a metal frame and a transparent observation window, and are equipped with a safety interlock system to ensure that the equipment can only operate when the door is closed, preventing personnel from entering the danger zone and causing injury. It is a core component of the injection molding machine's safety protection system and is directly related to the personal safety of operators and production efficiency.

[0003] In the actual production process of injection molding machine doors, most of the welding work is done manually by positioning and hand-held welding. However, manual positioning is not precise enough, and manual welding is prone to deviations, resulting in poor consistency of the welded parts. This leads to longer production time and a higher probability of defective products, requiring many parts to be reworked, increasing production costs, reducing production efficiency, increasing labor intensity, and affecting the overall production schedule of the enterprise. Utility Model Content

[0004] The purpose of this invention is to provide a clamping device for automatic welding of injection molding machine door frames, thereby solving at least one of the aforementioned technical problems. This clamping device can clamp the various components of the injection molding machine door together, facilitating subsequent automated welding, improving production efficiency, and reducing production costs for enterprises.

[0005] To achieve the above-mentioned objectives, the technical solution adopted by this utility model is as follows:

[0006] A clamping device for automatic welding of injection molding machine door frame includes: a pressure plate, a clamping device, and a pressing device. The device further includes load-bearing beams, a driving clamping platform, and a guide rail. The pressure plate has multiple load-bearing beams for supporting the injection molding machine door frame; multiple clamping devices for clamping the injection molding machine door frame are provided on the pressure plate; a movable driving clamping platform for clamping the injection molding machine door frame is provided on the pressure plate, and a slider is provided at the bottom of the driving clamping platform; the pressure plate has a guide rail adapted to the slider, and the slider moves along the guide rail.

[0007] Preferably, multiple load-bearing beams are evenly and symmetrically arranged on the pressure plate. The clamping device includes multiple first clamping devices arranged on the pressure plate near the left, right and front sides of the pressure plate, so that the first clamping devices can clamp the left, right and front sides of the injection molding machine door frame.

[0008] Preferably, at least one drive clamping platform is provided between every two load-bearing beams; the drive clamping platform includes: a drive device and a platform; the drive device is detachably connected to the platform; a second clamping device is provided on the platform, the second clamping device being used to clamp other components inside the injection molding machine door frame.

[0009] Preferably, the drive clamping platform further includes a baffle and / or a stop block disposed on the platform.

[0010] Preferably, at least two drive clamping platforms with opposite directions of movement are provided on the pressure plate so that the drive clamping platforms can clamp the parts located on the front and rear sides of the injection molding machine door frame.

[0011] Preferably, one side of the baffle is located on the outer side of the platform; one end of the stop extends away from the outer side of the platform, and the stop is used to abut against the reinforcing member on the injection molding machine door frame.

[0012] Preferably, grooves are symmetrically provided on both the front and rear sides of the load-bearing beam along its length.

[0013] Preferably, an L-shaped plate is provided on the side end of the load-bearing beam. The L-shaped plate includes a vertical part and a horizontal part of the L-shaped plate connected together. The L-shaped plate is used to install the injection molding machine door frame behind the load-bearing beam, and the side of the injection molding machine door frame abuts against the vertical part of the L-shaped plate.

[0014] Preferably, the clamping device includes a first clamping handle, a swing arm, a clamping head, a first connecting plate, a clamping mounting base, and a first base. The first clamping handle is hinged to the clamping mounting base, the swing arm is hinged to the clamping mounting base, one end of the first connecting plate is hinged to the first clamping handle, and the other end of the first connecting plate is hinged to the swing arm. The clamping mounting base is detachably connected to the first base, and a limit block is integrally provided on the first base. The clamping head is screwed onto the swing arm by at least one nut.

[0015] Preferably, the clamping device is used to abut against the rear side of the injection molding machine door frame. The clamping device includes a second clamp, a clamping rod, a connecting piece, a second connecting plate, a pressing mounting base, and a second base. The second clamp is hinged to the connecting piece, the clamping rod is hinged to the second connecting plate, the second connecting plate is hinged to the connecting piece, the connecting piece is hinged to the pressing mounting base, the pressing mounting base is provided with a limiting piece with a hole, the clamping rod passes through the limiting piece, and the pressing mounting base is detachably connected to the second base.

[0016] Beneficial effects:

[0017] This utility model discloses a clamping device for automatic welding of injection molding machine door frames. In use, mounting the injection molding machine door frame onto a load-bearing beam reduces the possibility of stress concentration at the clamping points due to heat deformation during welding, which could lead to workpiece deformation or weld misalignment. The device uses a clamping clamp and a pneumatic clamping platform to clamp and fix injection molding machine door frames of different thicknesses and materials, facilitating subsequent automated welding. Through workpiece positioning and automatic welding, this device improves the installation accuracy of the injection molding machine door frame, ensures the consistency of finished products, significantly reduces the possibility of defective products, increases production efficiency, and reduces production costs for enterprises. Attached Figure Description

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

[0019] Figure 2 This is a schematic diagram of the structure of the pneumatic clamping platform of this utility model;

[0020] Figure 3 This is a structural schematic diagram of the load-bearing beam of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the L-shaped plate of this utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the clamping device of this utility model;

[0023] Figure 6 This is a structural schematic diagram of the clamping device of this utility model from another perspective;

[0024] Figure 7 This is a schematic diagram of the structure of the clamping device of this utility model;

[0025] Figure 8 This is a schematic diagram of the structure of the injection molding machine door frame of this utility model.

[0026] Figure Labels

[0027] 1. Pressure plate; 2. Clamping device; 3. Load-bearing beam; 4. Drive clamping platform; 5. Slider; 6. Guide rail; 7. Drive device; 8. Platform; 9. Baffle; 10. Stop block; 11. Groove; 12. L-shaped plate; 13. Clamping device; 2A. First clamping device; 2B. Second clamping device; 21. First clamping handle; 22. Swing rod; 23. Pressure head; 24. First connecting plate; 25. Clamping mounting base; 26. First base; 27. Limiting block; 131. Second clamping handle; 132. Pressure rod; 133. Connecting piece; 134. Second connecting plate; 135. Clamping mounting base; 1351. Limiting piece; 136. Second base. Detailed Implementation

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0029] The technical solution of this utility model will be described in detail below with specific embodiments.

[0030] refer to Figure 1-8 As shown, this utility model discloses an automatic welding clamping device for injection molding machine door frames, comprising a pressure plate 1, clamping devices 2, and clamping pressing devices 13. Its features include: a load-bearing beam 3, a driving clamping platform 4, and a guide rail 6. The pressure plate 1 is provided with multiple load-bearing beams 3 for supporting the injection molding machine door frame; the pressure plate 1 is provided with multiple clamping devices 2 for clamping the injection molding machine door frame; the pressure plate 1 is provided with a movable driving clamping platform 4 for clamping the injection molding machine door frame, and a slider 5 is provided at the bottom of the driving clamping platform 4; the pressure plate 1 is provided with a guide rail 6 adapted to the slider 5, and the slider 5 moves along the guide rail 6. In this embodiment, the pressure plate 1 is set to ensure that all devices in the automatic welding clamping device for injection molding machine door frame of this utility model are on the same horizontal plane, so as to avoid deviation in clamping and fixing the injection molding machine door frame due to different heights of the devices. The injection molding machine door frame is installed on the load-bearing beam 3. At this time, the load-bearing beam 3 plays a supporting and fixing role, and by observing whether the injection molding machine door frame installed on the load-bearing beam 3 has obvious plastic deformation, it has the function of failure early warning. The drive clamping platform 4 selects the position of fixing the injection molding machine door frame component by moving along the guide rail 6. After welding is completed, the drive clamping platform 4 releases the clamping state and returns to the original position, so as to facilitate the removal of the welded injection molding machine door frame sample.

[0031] In this embodiment, as Figure 1As shown, multiple load-bearing beams 3 are evenly and symmetrically arranged on the pressure plate 1. The clamping device 2 includes multiple first clamping devices 2A arranged on the pressure plate 1 near the left, right, and front sides of the pressure plate 1, so that the first clamping devices 2A can clamp the left, right, and front sides of the injection molding machine door frame. Preferably, the first clamping devices 2A are evenly and symmetrically arranged along the edge of the pressure plate 1. Modern analysis and verification data show that the local stress can reach 2.3 times that of the symmetrical arrangement when the arrangement is asymmetrical. By evenly and symmetrically arranging the load-bearing beams 3, clamping devices 2, and driving clamping platform 4 on the pressure plate 1, the force on the door frame is transmitted radially when clamping and fixing the door frame, avoiding deformation of the door frame due to stress concentration on one side, which would affect the installation accuracy of the door frame and provide a prerequisite for subsequent automatic welding work.

[0032] In this embodiment, as Figure 1 As shown, at least one drive clamping platform 4 is provided between every two load-bearing beams 3; the drive clamping platform 4 includes: a drive device 7 and a platform 8; the drive device 7 and the platform 8 are detachably connected; a second clamping device 2B is provided on the platform 8, which is used to clamp other components inside the injection molding machine frame. Preferably, the side of the platform 8 is made smooth. Welding slag is generated during the automatic welding process. Making the side of the platform 8 smooth can effectively reduce the risk of slag and dust accumulation, and the dead-angle-free structure facilitates subsequent cleaning of the platform 8; the detachable connection between the drive device 7 and the platform 8 facilitates subsequent maintenance and cleaning of the drive device 7 and the platform 8; the bottom of the platform 8 is provided with the slider 5, which is driven by the telescopic rod in the drive device 7 to move along the guide rail 6, thereby realizing the movement of the platform 8.

[0033] In this embodiment, as Figure 2 As shown, the drive clamping platform 4 also includes a baffle 9 and / or a stop 10 disposed on the platform 8. During the movement of the platform 8 from its initial position, the distance until the baffle 9 contacts the injection molding machine frame is the farthest distance from the slider 5 to the guide rail 6, i.e., the limit distance of the platform 8. The function of the baffle 9 is to prevent the platform 8 from directly contacting the injection molding machine frame during movement, avoiding scratches on the sides of the platform 8 and providing protection for the platform 8. The stop 10 is used to fix the reinforcing member on the injection molding machine frame. By fixing the reinforcing member with two stops 10, it prevents circumferential displacement, ensuring that the second clamping device 2B fully clamps the reinforcing member, preventing welding deviations during subsequent automatic welding.

[0034] In this embodiment, as Figure 1The aforementioned configuration includes at least two driving clamping platforms 4 with opposite directions of movement on the pressure plate 1, enabling the driving clamping platforms 4 to clamp components located on the front and rear sides of the injection molding machine frame. During the manufacturing process of the injection molding machine frame, the simultaneous clamping of components on the front and rear sides of the frame by at least two driving clamping platforms 4 with opposite directions of movement significantly reduces the clamping time, substantially improves production efficiency, and eliminates errors caused by secondary clamping, ensuring the positional accuracy of components on the injection molding machine frame after clamping.

[0035] In this embodiment, as Figure 2 As shown, one side of the baffle (9) is located on the outside of the platform (8); one end of the stop (10) extends away from the outside of the platform (8), and the stop (10) is used to abut against the reinforcing member on the injection molding machine door frame.

[0036] In this embodiment, as Figure 3 As shown, grooves 11 are symmetrically arranged on the front and rear sides of the load-bearing beam 3 along its length.

[0037] In this embodiment, as Figure 4 As shown, an L-shaped plate 12 is provided on the side end of the load-bearing beam 3. The L-shaped plate 12 includes a vertical part and a horizontal part of the L-shaped plate connected together. After the injection molding machine door frame is installed on the load-bearing beam 3, the side of the injection molding machine door frame abuts against the vertical part of the L-shaped plate. The injection molding machine door frame is divided into a vertical part and a horizontal part. After the vertical part of the door frame is installed on the load-bearing beam 3 and abuts against the vertical part of the L-shaped plate, the initial positioning of the vertical part of the door frame is completed. After the initial positioning of the vertical part of the door frame is completed, the horizontal part of the door frame is embedded into the groove 11, so that the inner side of the horizontal part of the door frame fits against the side of the groove 11. After adjusting the intersection of the horizontal part and the vertical part of the door frame so that there is no excess protrusion, the initial installation of the injection molding machine door frame is completed.

[0038] In this embodiment, as Figure 5 and Figure 6As shown, the clamping device 2 includes a first clamping handle 21, a swing arm 22, a clamping head 23, a first connecting plate 24, a clamping mounting base 25, a first base 26, and a limiting block 27. The first clamping handle 21 is hinged to the clamping mounting base 25, the swing arm 22 is hinged to the clamping mounting base 25, one end of the first connecting plate 24 is hinged to the first clamping handle 21, and the other end of the first connecting plate 24 is hinged to the swing arm 22. The clamping mounting base 25 is detachably connected to the first base 26, and the limiting block 27 is integrally provided on the first base 26. The clamping head 23 is screwed onto the swing arm 22 by at least one nut. Specifically, the top of the swing arm 22 is connected to the pressure head 23, which is movable on the swing arm 22. The bottom of the swing arm 22 is hinged to the clamp mounting base 25. One end of the first connecting plate 24 is hinged to the inside of the first pressure handle 21, and the other end of the first connecting plate 24 is hinged to the middle of the first pressure handle 21. In use, after adjusting the pressure head 23 on the swing arm 22 to a suitable position, tighten the nut and move the first pressure handle 21 towards the load-bearing beam 3. 1. The first connecting plate 24 drives the swing rod 22 to complete the clamping action of the injection molded door frame; after the automatic welding is completed, the first pressure handle 21 is moved away from the load-bearing beam 3 until it is in contact with the limit block 27. The first pressure handle 21 drives the swing rod 22 through the first connecting plate 24. At this time, the swing rod 22 and the injection molded door frame form an angle that can completely remove the injection molded door frame, thus completing the unlocking action of the injection molded door frame; preferably, the bottom surface of the first base 26 of the second clamping device 2B maintains a certain distance from the surface of the upper door panel of the injection molded door frame. The first base 26 of the second clamping device 2B maintains a certain distance from the surface of the upper door panel of the injection molding machine door frame to prevent the first base 26 of the second clamping device 2B from contacting the injection molding machine door frame during the movement of the driving clamping platform 4, which could cause scratches or crushing deformation of the injection molding machine door frame. This effectively ensures the structural integrity of the injection molding machine door frame and reduces safety hazards caused by the injection molding machine door. Preferably, the pressure head 23 is composed of a plastic material, such as a rubber material (e.g., polyurethane PU, silicone rubber, nitrile rubber, etc.). Rubber materials have the characteristic of protecting the workpiece surface, effectively avoiding indentations or scratches on the door frame during clamping. Furthermore, after being deformed by pressure, the rubber automatically conforms to the surface of the door frame, resulting in a more uniform pressure distribution and preventing localized stress concentration that could lead to door frame deformation. Rubber materials also have the characteristic of being economical in industrial manufacturing, reducing the production cost of manufacturing door frames.

[0039] In this embodiment, as Figure 7As shown, the clamping device 13 is used to abut against the rear side of the injection molding machine door frame. The clamping device 13 includes a second clamping handle 131, a clamping rod 132, a connecting piece 133, a second connecting plate 134, a pressing mounting base 135, and a second base 136. The second clamping handle 131 is hinged to the connecting piece 133, the clamping rod 132 is hinged to the second connecting plate 134, the second connecting plate 134 is hinged to the connecting piece 133, the connecting piece 133 is hinged to the pressing mounting base 135, the pressing mounting base 135 is provided with a perforated limiting piece 1351, the clamping rod 132 passes through the limiting piece 1351, and the pressing mounting base 135 is detachably connected to the second base 136. Specifically, the second pressure handle 131 is hinged at the top of the connecting piece 133, the second connecting plate 134 is hinged at the middle of the connecting piece 133, and the pressure mounting seat 135 is hinged at the bottom of the connecting piece 133. In use, moving the second pressure handle 131 towards the load-bearing beam 3 causes the pressure rod 132 to move horizontally towards the load-bearing beam 3 via the second connecting plate 134, thus completing the pressure action on the injection molding machine door frame. Conversely, moving the second pressure handle 131 away from the load-bearing beam 3 completes the unlocking action on the injection molding machine door frame.

[0040] The embodiments of this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The descriptions of the embodiments above are merely for the purpose of helping to understand the core ideas of this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A clamping device for automatic welding of injection molding machine door frame, comprising a pressure plate (1), a clamping device (2), and a clamping pressing device (13), characterized in that: It also includes load-bearing beams (3), drive clamping platform (4), and guide rails (6). The pressure plate (1) is provided with multiple load-bearing beams (3) for bearing the weight of the injection molding machine door frame; the pressure plate (1) is provided with multiple clamping devices (2) for clamping the injection molding machine door frame; the pressure plate (1) is provided with a movable drive clamping platform (4) for clamping the injection molding machine door frame, and a slider (5) is provided at the bottom of the drive clamping platform (4); the pressure plate (1) is provided with a guide rail (6) that is compatible with the slider (5), and the slider (5) moves along the guide rail (6).

2. The clamping device for automatic welding of injection molding machine door frame according to claim 1, characterized in that, Multiple load-bearing beams (3) are evenly and symmetrically arranged on the pressure plate (1). The clamping device (2) includes multiple first clamping devices (2A) arranged on the pressure plate (1) near the left, right and front sides of the pressure plate (1), so that the first clamping devices (2A) can clamp the left, right and front sides of the injection molding machine door frame.

3. The clamping device for automatic welding of injection molding machine door frame according to claim 1, characterized in that, At least one drive clamping platform (4) is provided between every two load-bearing beams (3); the drive clamping platform (4) includes a drive device (7) and a platform (8); the drive device (7) and the platform (8) are detachably connected; a second clamping device (2B) is provided on the platform (8), the second clamping device (2B) is used to clamp other components inside the injection molding machine door frame.

4. The clamping device for automatic welding of injection molding machine door frame according to claim 3, characterized in that, The drive clamping platform (4) also includes a baffle (9) and / or a stop (10) disposed on the platform (8).

5. A clamping device for automatic welding of injection molding machine door frame according to claim 3, characterized in that, At least two drive clamping platforms (4) with opposite directions of movement are provided on the pressure plate (1) so that the drive clamping platforms (4) can clamp the parts located on the front and rear sides of the injection molding machine frame.

6. A clamping device for automatic welding of injection molding machine door frame according to claim 4, characterized in that, One side of the baffle (9) is located on the outside of the platform (8); one end of the stop (10) extends away from the outside of the platform (8), and the stop (10) is used to abut against the reinforcing member on the injection molding machine door frame.

7. A clamping device for automatic welding of injection molding machine door frame according to claim 2, characterized in that, Grooves (11) are symmetrically provided on the front and rear sides along the length of the load-bearing beam (3).

8. A clamping device for automatic welding of injection molding machine door frame according to claim 2, characterized in that, An L-shaped plate (12) is provided on the side end of the load-bearing beam (3). The L-shaped plate (12) includes a vertical part and a horizontal part of the L-shaped plate connected together. The L-shaped plate is used to install the injection molding machine door frame after the load-bearing beam (3), and the side of the injection molding machine door frame abuts against the vertical part of the L-shaped plate.

9. A clamping device for automatic welding of injection molding machine door frame according to claim 8, characterized in that, The clamping device (2) includes a first clamp (21), a swing rod (22), a clamp head (23), a first connecting plate (24), a clamp mounting base (25), and a first base (26). The first clamp (21) is hinged to the clamp mounting base (25), the swing rod (22) is hinged to the clamp mounting base (25), one end of the first connecting plate (24) is hinged to the first clamp (21), and the other end of the first connecting plate (24) is hinged to the swing rod (22). The clamp mounting base (25) is detachably connected to the first base (26). A limit block (27) is integrally provided on the first base (26). The clamp head (23) is screwed onto the swing rod (22) by at least one nut.

10. A clamping device for automatic welding of injection molding machine door frame according to claim 1, characterized in that, The clamping device (13) is used to abut against the rear side of the injection molding machine door frame. The clamping device (13) includes a second clamp (131), a clamping rod (132), a connecting piece (133), a second connecting plate (134), a pressing mounting base (135), and a second base (136). The second clamp (131) is hinged to the connecting piece (133), the clamping rod (132) is hinged to the second connecting plate (134), the second connecting plate (134) is hinged to the connecting piece (133), the connecting piece (133) is hinged to the pressing mounting base (135), the pressing mounting base (135) is provided with a perforated limiting piece (1351), the clamping rod (132) passes through the limiting piece (1351), and the pressing mounting base (135) is detachably connected to the second base (136).

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