Clamping device of plastic welding machine

Abstract

The clamping device of the plastic welding machine comprises a bottom plate, a rotating shaft is rotationally installed on the upper end face of the bottom plate through two supporting plates, a first motor connected with the rotating shaft is fixedly installed on the outer wall of one supporting plate, and a machining table is fixedly connected to the outer wall of the rotating shaft through a connecting mechanism. A double-thread screw is rotationally installed on the upper end face of the machining table through a moving groove, a second motor connected with the double-thread screw is fixedly installed on the outer wall of the machining table, two moving plates are installed on the outer wall of the double-thread screw in a threaded mode, and a limiting rod is fixedly installed in the moving groove. According to the clamping device, the double-thread screw, the limiting rod, the moving plates, the clamping plates and the like are arranged, when the double-thread screw rotates forwards and backwards, the double-thread screw can be matched with the limiting rod to drive the two moving plates to be far away from each other or close to each other, and therefore the distance between the two clamping plates can be conveniently adjusted, and workpieces of different sizes can be clamped and fixed.

Description

Technical Field

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

[0002] A plastic welding machine is a device used to connect plastic products. It is mainly applied to the connection of thermoplastic plastics. The plastic welding machine melts the contact surfaces of two plastic parts by heating or ultrasonic vibration, and then makes them closely combine under pressure to form a solid whole.

[0003] When in use, a plastic welding machine needs to clamp and fix the workpiece through a clamping device. In the prior art, most clamping devices for plastic welding machines cannot adjust the stroke of the clamping device during use, resulting in that the clamping device can only clamp and fix workpieces of the same size and cannot effectively clamp workpieces of different sizes, which causes limitations and insufficient practicability in the use process of the clamping device. Therefore, it is necessary to redesign a clamping device for a plastic welding machine to solve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the deficiencies existing in the prior art and to provide a clamping device for a plastic welding machine.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A clamping device for a plastic welding machine, comprising a bottom plate. A rotating shaft is rotatably installed on the upper end surface of the bottom plate through two support plates. A first motor connected to the rotating shaft is fixedly installed on the outer wall of one of the support plates. A processing table is fixedly connected to the outer wall of the rotating shaft through a connecting mechanism. A double-headed screw rod is rotatably installed on the upper end surface of the processing table through a moving groove. A second motor connected to the double-headed screw rod is fixedly installed on the outer wall of the processing table. Two moving plates are threadedly installed on the outer wall of the double-headed screw rod. A limiting rod is fixedly installed inside the moving groove. The limiting rod slidably penetrates through the two moving plates. Connecting sleeves are fixedly installed on the inner walls of the two moving plates. Connecting rods are slidably installed on the inner walls of the two connecting sleeves. Fixing pins are slidably installed through the upper end surfaces of the two connecting sleeves. Insertion holes cooperating with the fixing pins are formed on the outer walls of the two connecting rods. Pulling blocks are fixedly installed on the outer walls of the two fixing pins. The bottom walls of the two pulling blocks are elastically connected to the outer walls of the same-side connecting sleeves through fixing mechanisms. Clamping plates are fixedly installed at the ends of the two connecting rods. A cold air blower and a third motor are fixedly installed on the upper end surface of the bottom plate through a support mechanism. A connecting sleeve is rotatably installed on the outer wall of the outlet pipe of the cold air blower. Connecting pipes are fixedly installed on the inner walls of the connecting sleeve. Air blowing pipes are fixedly installed on the outer walls of the connecting pipes. Air blowing openings communicating with the inside are formed on the outer walls of the air blowing pipes. The outer wall of the output shaft of the third motor is connected to the connecting sleeve through a transmission mechanism.

[0007] Preferably, the connecting mechanism includes two connecting blocks fixedly installed on the outer wall of the rotating shaft. The ends of the two connecting blocks are fixedly connected to the bottom wall of the processing table.

[0008] Preferably, the fixing mechanism includes a fixing spring installed on the outer wall of the fixing pin. The two ends of the fixing spring are elastically connected to the outer wall of the connecting sleeve and the bottom wall of the pulling block respectively.

[0009] Preferably, the support mechanism includes a support frame fixedly installed on the upper end surface of the bottom plate. The cold air blower and the third motor are both fixedly installed on the upper end surface of the support frame.

[0010] Preferably, the transmission mechanism includes belt pulleys fixedly installed on the outer walls of the connecting sleeve and the output shaft of the third motor. The two belt pulleys are connected and driven by a belt.

[0011] Preferably, anti-slip pads are fixedly installed on the inner walls of the two clamping plates. Both of the anti-slip pads are made of rubber.

[0012] The beneficial effects of the present utility model:

[0013] 1. By arranging components such as a double-headed screw rod, a limiting rod, moving plates and clamping plates, when the double-headed screw rod rotates forward and backward, the two moving plates can be driven to move away from or close to each other through cooperation with the limiting rod, so that the distance between the two clamping plates can be conveniently adjusted, and thus workpieces of different sizes can be clamped and fixed.

[0014] 2. By setting components such as a cold air blower, a connecting pipe, and a blowing pipe, the cold air blower can blow cold air into the interior of the blowing pipe through the cooperation of a connecting sleeve and the connecting pipe, and then the cold air blows out the workpiece through the blowing opening inside the blowing pipe for blowing, thereby increasing the cooling speed at the welding joint of the workpiece. Description of the Drawings

[0015] Figure 1 FIG. is a schematic structural diagram of a clamping device of a plastic welding machine proposed by the present utility model;

[0016] Figure 2 is Figure 1 the vertical sectional structural diagram of

[0017] Figure 3 FIG. is a schematic side view structural diagram of a clamping device of a plastic welding machine proposed by the present utility model;

[0018] Figure 4 is Figure 2 the enlarged schematic diagram of the structure at A in

[0019] In the figure: 1 base plate, 2 support plate, 3 rotating shaft, 4 first motor, 5 connecting block, 6 processing table, 7 double-headed screw rod, 8 second motor, 9 limiting rod, 10 moving plate, 11 connecting sleeve, 12 connecting rod, 13 fixing pin, 14 dialing block, 15 fixing spring, 16 clamping plate, 17 anti-slip pad, 18 support frame, 19 cold air blower, 20 connecting sleeve, 21 connecting pipe, 22 blowing pipe, 23 third motor, 24 belt pulley. Detailed Embodiment

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0021] Refer to Figures 1-4, A clamping device for a plastic welding machine, comprising a bottom plate 1. A rotating shaft 3 is rotatably installed on the upper end surface of the bottom plate 1 through two support plates 2. A first motor 4 connected to the rotating shaft 3 is fixedly installed on the outer wall of one of the support plates 2. The first motor 4 is a conical rotor motor. A conical rotor motor is a special type of motor, and both the inner cavity of its stator and the outer shape of its rotor are conical. In the case of power failure, the braking device of the conical rotor motor can act quickly to prevent the equipment from accidentally moving without power. The outer wall of the rotating shaft 3 is fixedly connected to a processing table 6 through a connecting mechanism. The connecting mechanism includes two connecting blocks 5 fixedly installed on the outer wall of the rotating shaft 3. The ends of both connecting blocks 5 are fixedly connected to the bottom wall of the processing table 6. A double-headed screw 7 is rotatably installed on the upper end surface of the processing table 6 through a moving groove. A second motor 8 connected to the double-headed screw 7 is fixedly installed on the outer wall of the processing table 6. Two moving plates 10 are threadedly installed on the outer wall of the double-headed screw 7. A limiting rod 9 is fixedly installed inside the moving groove. The limiting rod 9 slidably penetrates through both moving plates 10. The limiting rod 9 can restrict the two moving plates 10, enabling the two moving plates 10 to only axially move along the outer wall of the double-headed screw 7.

[0022] A connecting sleeve 11 is fixedly installed on the inner wall of both moving plates 10. A connecting rod 12 is slidably installed on the inner wall of both connecting sleeves 11. A fixing pin 13 is slidably penetrated through the upper end surface of both connecting sleeves 11. Insertion holes cooperating with the fixing pin 13 are provided on the outer walls of both connecting rods 12. A dial block 14 is fixedly installed on the outer wall of both fixing pins 13. The bottom walls of both dial blocks 14 are elastically connected to the outer wall of the same-side connecting sleeve 11 through a fixing mechanism. The fixing mechanism includes a fixing spring 15 installed on the outer wall of the fixing pin 13. The two ends of the fixing spring 15 are elastically connected to the outer wall of the connecting sleeve 11 and the bottom wall of the dial block 14 respectively.

[0023] Clamping plates 16 are fixedly installed at the ends of both connecting rods 12. Anti-slip pads 17 are fixedly installed on the inner walls of both clamping plates 16. Both anti-slip pads 17 are made of rubber. A cold air blower 19 and a third motor 23 are fixedly installed on the upper end surface of the bottom plate 1 through a support mechanism. The support mechanism includes a support frame 18 fixedly installed on the upper end surface of the bottom plate 1. Both the cold air blower 19 and the third motor 23 are fixedly installed on the upper end surface of the support frame 18. A connecting sleeve 20 is rotatably installed on the outer wall of the outlet pipe of the cold air blower 19. Connecting pipes 21 are fixedly installed on the inner walls of both connecting sleeves 20. A blowing pipe 22 is fixedly installed on the outer wall of the connecting pipe 21. Air blowing openings communicating with the inside are provided on the outer wall of the blowing pipe 22. The outer wall of the output shaft of the third motor 23 is connected to the connecting sleeve 20 through a transmission mechanism. The transmission mechanism includes pulleys 24 fixedly installed on the outer walls of the connecting sleeve 20 and the output shaft of the third motor 23. The two pulleys 24 are connected and driven by a belt.

[0024] When the utility model is in use, first place the workpiece on the upper end surface of the processing table 6. Subsequently, the second motor 8 drives the double-headed screw rod 7 to rotate. The double-headed screw rod 7 drives the two moving plates 10 to move relative to each other through cooperation with the limit rod 9. Thus, the two clamping plates 16 can be made to approach each other and clamp and fix the workpiece through the anti-slip pads 17. The anti-slip pads 17 can increase the friction with the outer wall of the workpiece and improve the firmness during clamping. Driven by the double-headed screw rod 7, the distance between the two clamping plates 16 can be conveniently adjusted, so that workpieces of different sizes can be clamped and fixed. When it is necessary to clamp workpieces with different shapes, the dial block 14 can be toggled to drive the fixing pin 13 to move out of the jack, thereby releasing the fixation of the connecting rod 12 inside the connecting sleeve 11. Subsequently, the connecting rod 12 can be pulled out from the inside of the connecting sleeve 11, so that the convenient disassembly and assembly of different types of clamping plates 16 can be realized;

[0025] When welding the workpiece, the first motor 4 can drive the rotating shaft 3 to rotate. The rotating shaft 3 then drives the processing table 6 to rotate through the cooperation of the two connecting blocks 5. Thus, the processing table 6 can drive the clamped and fixed workpiece to rotate and tilt, thereby increasing the convenience during welding of the workpiece. When the welding of the workpiece is completed, the cold air blower 19 can blow cold air into the inside of the air blowing pipe 22 through the cooperation of the connecting sleeve 20 and the connecting pipe 21. The cold air then blows out of the workpiece through the air blowing openings inside the air blowing pipe 22, thereby increasing the cooling speed of the welding part of the workpiece. At the same time, the third motor 23 can drive the connecting sleeve 20 to rotate through the two belt pulleys 24 connected by a belt. The connecting sleeve 20 then drives the air blowing pipe 22 to rotate through the cooperation of the connecting pipe 21. Thus, the area of air blowing can be increased by rotation, and the cooling effect on the welding parts of workpieces of different sizes can be improved.

[0026] The above is only a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the utility model, according to the technical solution of the utility model and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the utility model.

Claims

1. A clamping device for a plastic welding machine, comprising a bottom plate (1), characterized in that, The upper end surface of the bottom plate (1) is rotatably mounted with a rotating shaft (3) through two supporting plates (2); a first motor (4) connected to the rotating shaft (3) is fixedly mounted on the outer wall of one of the supporting plates (2); a processing table (6) is fixedly connected to the outer wall of the rotating shaft (3) through a connecting mechanism; a double-headed screw (7) is rotatably mounted on the upper end surface of the processing table (6) through a movable groove; a second motor (8) connected to the double-headed screw (7) is fixedly mounted on the outer wall of the processing table (6); two movable plates (10) are threadedly mounted on the outer wall of the double-headed screw (7); a limiting rod (9) is fixedly mounted inside the movable groove; the limiting rod (9) slides through the two movable plates (10); a connecting sleeve (11) is fixedly mounted on the inner wall of the two movable plates (10); a connecting rod (12) is slidably mounted on the inner wall of the two connecting sleeves (11); the upper end surfaces of the two connecting sleeves (11) slide through the mounting holes; A fixing pin (13) is provided, and the outer walls of the two connecting rods (12) are provided with a plug hole that matches the fixing pin (13). The outer walls of the two fixing pins (13) are fixedly installed with a shifting block (14). The bottom walls of the two shifting blocks (14) are elastically connected to the outer wall of the connecting sleeve (11) on the same side through a fixing mechanism. The ends of the two connecting rods (12) are fixedly installed with a clamping plate (16). The upper end surface of the bottom plate (1) is fixedly installed with a cooling fan (19) and a third motor (23) through a supporting mechanism. The outer wall of the outlet pipe of the cooling fan (19) is rotatably installed with a connecting sleeve (20). The inner wall of the connecting sleeve (20) is fixedly installed with a connecting pipe (21). The outer wall of the connecting pipe (21) is fixedly installed with a blowing pipe (22). The outer wall of the blowing pipe (22) is provided with a blowing port that is connected to the inside. The outer wall of the output shaft of the third motor (23) is connected to the connecting sleeve (20) through a transmission mechanism.

2. The clamping device of a plastic welding machine according to claim 1, wherein, The connection mechanism comprises two connection blocks (5) fixedly mounted on the outer wall of the rotating shaft (3), and the ends of the two connection blocks (5) are fixedly connected to the bottom wall of the processing table (6).

3. The clamping device of a plastic welding machine according to claim 2, characterized in that, The fixing mechanism comprises a fixing spring (15) mounted on the outer wall of the fixing pin (13), and two ends of the fixing spring (15) are elastically connected to the outer wall of the connection sleeve (11) and the bottom wall of the shifting block (14) respectively.

4. The clamping device of a plastic welding machine according to claim 3, characterized in that The support mechanism comprises a support frame (18) fixedly mounted on the upper end surface of the base plate (1), and the cooling fan (19) and the third motor (23) are both fixedly mounted on the upper end surface of the support frame (18).

5. The clamping device of a plastic welding machine according to claim 4, characterized in that, The transmission mechanism comprises a pulley (24) fixedly mounted on the connecting sleeve (20) and the outer wall of the output shaft of the third motor (23), and the two pulleys (24) are connected for transmission via a belt.

6. The clamping device of a plastic welding machine according to claim 5, characterized in that, Anti-skid pads (17) are fixedly mounted on the inner walls of the two clamping plates (16), and the two anti-skid pads (17) are both made of rubber.

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