Rotary clamping device of curing oven

Abstract

The utility model discloses a rotary clamping device of a curing oven, which relates to the technical field of curing oven equipment and comprises a supporting block fixed on a rotating shaft, and a U-shaped groove for clamping a rotary connecting rod is arranged on the supporting block. One end, clamped into the U-shaped groove, of the rotary connecting rod is milled to be flat to form a flat surface; the groove wall of the U-shaped groove is provided with a slideway which obliquely extends to the lower part of the outer side of the U-shaped groove, and the upper part of the slideway is communicated with the U-shaped groove; clamping blocks are slidably mounted in the slideways in a limiting manner, and reset springs are arranged between the clamping blocks and the bottoms of the slideways; under the action of the reset spring, the clamping block extends into the U-shaped groove, and the axis distance between the clamping block and the rotary connecting rod is smaller than the radius of the rotary connecting rod; and under the action of external force, the clamping block can retract into the slide way. A pure mechanical structure is adopted, stable work can be achieved in the high-temperature environment, and therefore stable clamping of the rotary connecting rod is guaranteed, and the curing effect is guaranteed.

Description

Technical Field

[0001] This utility model relates to the technical field of curing oven equipment, and in particular to a rotary clamping device for a curing oven. Background Technology

[0002] In the production process of wound gas cylinders, curing is a crucial step. To achieve uniform curing of the gas cylinder in the curing oven, the gas cylinder needs to be mounted on a rotating connecting rod. Then, the connecting rod is placed on a bracket and the rotating connecting rod is fixed to the rotary joint using a clamping device. The rotation of the rotary joint drives the rotating connecting rod and the gas cylinder to rotate.

[0003] Traditional clamping devices mostly use pneumatic chucks or hydraulic clamping methods. However, these devices are easily affected by heat in high-temperature environments, leading to performance degradation or even failure. This results in unstable fixing of the rotating rod and the rotary joint, making it impossible for the rotary joint to reliably drive the rotating rod to rotate, thus affecting the curing quality of the gas cylinder and production efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a rotary clamping device for a curing oven, which adopts a purely mechanical structure and can work stably in a high-temperature environment, thereby ensuring the clamping stability of the rotary connecting rod and guaranteeing the curing effect.

[0005] To achieve the above objectives, this utility model provides a rotary clamping device for a curing oven, including a support block fixed on a rotating shaft, the support block having a U-shaped groove for a rotating connecting rod to be inserted into; one end of the rotating connecting rod inserted into the U-shaped groove is milled flat to form a flat surface; a slide rail extending inclinedly downwards and outwards from the wall of the U-shaped groove is provided, the upper part of the slide rail connecting to the U-shaped groove; a locking block is slidably installed within the slide rail, and a return spring is provided between the locking block and the bottom of the slide rail; under the action of the return spring, the locking block extends into the U-shaped groove, and the distance between the locking block and the axis of the rotating connecting rod is less than the radius of the rotating connecting rod; under the action of external force, the locking block can retract into the slide rail.

[0006] With the above structure, by flattening one end of the rotating connecting rod that is inserted into the U-shaped groove, when the rotating connecting rod is inserted downwards into the U-shaped groove, it contacts the locking block, pressing the locking block downwards and causing it to retract into the slide rail, thus achieving automatic clamping. After clamping, when the rotating shaft drives the support block to rotate, because there is no limit between the U-shaped groove and the rotating connecting rod, the support block cannot drive the rotating connecting rod to rotate simultaneously. When the support block rotates to the flat surface, a certain clearance space is formed between the rotating connecting rod and the groove wall of the U-shaped groove, and the force on the locking block disappears. Under the action of the return spring, the locking block pushes upwards and extends out of the slide rail. At this time, the width of the U-shaped groove decreases. When the support block continues to rotate, the rotating connecting rod does not have enough rotation space, and the locking block pushes the rotating connecting rod to follow the support block to rotate. Through this purely mechanical structure, it can work stably in high-temperature environments, thus ensuring that the gas cylinder is firmly clamped and ensuring the curing effect.

[0007] Preferably, the end of the rotating connecting rod that engages with the U-shaped groove is milled flat on both sides, forming two opposing flat surfaces. This design increases the probability of the locking block contacting the flat surfaces and reduces the distance of idle rotation.

[0008] Preferably, a slide rail is symmetrically arranged on each side wall of the U-shaped groove, and a set of locking blocks is slidably installed in each slide rail. This design allows the rotating connecting rod to be clamped whether the support block rotates forward or backward.

[0009] Preferably, the side of the locking block extending out of the slide rail is a vertically oriented flat surface. When the locking block is inserted into the U-shaped groove, the flat surface fits against the flat surface. This design increases the contact area between the locking block and the flat surface, ensuring stable clamping.

[0010] Preferably, the top of the slide rail is provided with a limiting protrusion extending into the slide rail; the top of the locking block is provided with a limiting groove that mates with the limiting protrusion; when the flat surface and the flat surface are in contact, the limiting protrusion engages with the limiting groove. This design achieves top limiting and ensures the positional accuracy of the locking block.

[0011] Preferably, the outer side of the U-shaped groove has a through groove connecting to the slide rail, and a pressure block is detachably installed inside the through groove. The pressure block and the inner side wall of the through groove form the slide rail. This design allows for convenient inspection and replacement of the return spring or the retaining block.

[0012] Preferably, the support block is detachably mounted on the rotating shaft. This design enhances the versatility and flexibility of the device.

[0013] Preferably, the U-shaped groove has guide slopes on both sides of the groove opening.

[0014] After adopting the above technical solution, the beneficial effects of this utility model are:

[0015] This utility model provides a rotary clamping device for a curing oven, which solves the technical problem that traditional clamping devices in the prior art cannot meet the requirements of working in high-temperature environments and are prone to clamping failure. This utility model adopts a purely mechanical structure, which can work stably in high-temperature environments, thereby ensuring the clamping stability of the rotating connecting rod and ensuring the curing effect. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a rotary clamping device for a curing oven according to this utility model;

[0017] Figure 2 This is a schematic diagram of the structure when the rotating connecting rod is just inserted into the U-shaped groove;

[0018] Figure 3 This is a structural diagram showing the rotating connecting rod and the locking block in their engaged state.

[0019] In the diagram, 1. Rotating shaft, 2. Support block, 21. U-shaped groove, 211. Through groove, 212. Pressure block, 22. Slide rail, 221. Limiting protrusion, 23. Locking block, 231. Flat surface, 232. Limiting groove, 24. Return spring, 3. Rotating connecting rod, 31. Flat surface, 4. Rotary joint, 5. Drive motor, 6. Bracket. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] The orientations mentioned in this specification are based on the orientation of the rotary clamping device for curing ovens of this utility model when it is working normally. They do not limit the orientation during storage and transportation, but only represent relative positional relationships, not absolute positional relationships.

[0022] like Figure 2 and Figure 3 As shown, a curing oven rotary clamping device includes a support block 2 fixed on a rotating shaft 1, and a U-shaped groove 21 provided on the support block 2 for a rotating connecting rod 3 to be inserted. Guide slopes are provided on both sides of the groove opening of the U-shaped groove 21 to facilitate the insertion of the rotating connecting rod 3.

[0023] like Figure 1 As shown, during installation, the rotating shaft 1 is rotatably mounted on the frame. A rotary joint 4 is fixedly mounted on the rotating shaft 1. The drive motor 5 drives the rotary joint 4 to rotate through the sprocket and drive chain, thereby realizing the rotation of the rotating shaft 1, which in turn drives the support block 2 to rotate.

[0024] The gas cylinder is fixed to the rotating connecting rod 3. The rotating connecting rod 3 is held by a robotic arm or a gantry robotic arm and placed on the support roller of the bracket 6 for support. At the same time, one end of the rotating connecting rod 3 is inserted into the U-shaped groove 21. To avoid subsequent fitting errors, the width of the U-shaped groove 21 is the same as the diameter of the rotating connecting rod 3.

[0025] One end of the rotating connecting rod 3, which is inserted into the U-shaped groove 21, is milled flat to form a flat surface 31. A slide 22, extending inclined downwards and outwards from the wall of the U-shaped groove 21, is provided, with the upper part of the slide 22 connected to the U-shaped groove 21. A locking block 23 is slidably installed within the slide 22, and a return spring 24 is provided between the locking block 23 and the bottom of the slide 22. Under the action of the return spring 24, the locking block 23 extends into the U-shaped groove 21, and the distance between its axis and the rotating connecting rod 3 is less than the radius of the rotating connecting rod 3, thus achieving a cooperating effect with the rotating connecting rod 3. Under the action of external force, the locking block 23 can retract into the slide 22, thereby achieving automatic clamping.

[0026] When the rotating connecting rod 3 is inserted downward into the U-shaped groove 21, the rotating connecting rod 3 contacts the locking block 23, pressing the locking block 23 downward and causing it to retract into the slide rail 22 until the rotating connecting rod 3 is supported on the roller of the bracket 6. In order to achieve stable support, the bottom of the U-shaped groove 21 is flush with the roller support surface of the bracket 6, so that when the rotating connecting rod 3 is supported on the roller, it is also inserted into the bottom of the U-shaped groove 21. When the rotating shaft 1 drives the support block 2 to rotate, because there is no limit between the U-shaped groove 21 and the rotating connecting rod 3, the support block 2 cannot drive the rotating connecting rod 3 to rotate simultaneously. When the support block 2 rotates to the flat surface 31, a certain clearance space is formed between the rotating connecting rod 3 and the groove wall of the U-shaped groove 21, and the force on the locking block 23 disappears. Under the action of the return spring 24, the locking block 23 pushes upward and extends out of the slide 22. At this time, the width inside the U-shaped groove 21 decreases. When the support block 2 continues to rotate, the rotating connecting rod 3 does not have enough rotation space, and the locking block 23 pushes the rotating connecting rod 3 to follow the support block 2 to rotate. Of course, for the locking block 23 to push the rotating connecting rod 3 to follow the support block 2 to rotate, there are certain requirements for the installation position of the locking block 23 and the rotation direction of the support block 2, so as to avoid the reaction force of the locking block 23 pushing the rotating connecting rod 3 to rotate, which would cause the locking block 23 to retract into the slide 22 and cause clamping failure. When it is necessary to release the rotating connecting rod 3, simply pull the rotating connecting rod 3 upward.

[0027] To increase the probability of contact between the locking block 23 and the flat surface 31 and reduce the distance of idle rotation, this embodiment is an improvement on the above embodiment. The end of the rotating connecting rod 3 that is inserted into the U-shaped groove 21 is milled flat on both sides to form two oppositely arranged flat surfaces 31.

[0028] To ensure that the rotating connecting rod 3 can be clamped by the support block 2 in both forward and reverse rotation, a slide rail 22 is symmetrically arranged on each side wall of the U-shaped groove 21, and a set of locking blocks 23 is slidably installed in each slide rail 22. This arrangement ensures that a set of locking blocks 23 engages with the flat surface 31 regardless of whether the rotation is forward or reverse.

[0029] When Figure 3 As shown, when the support block 2 rotates clockwise, the left-side locking block 23, while pushing the rotating connecting rod 3 to rotate, experiences a counter-clockwise force from the rotating connecting rod 3, causing the locking block 23 to retract into the slide rail 22, thus rendering the force ineffective. Conversely, when the right-side locking block 23 pushes the rotating connecting rod 3 to rotate, the rotating connecting rod 3 experiences a counter-clockwise force from the right-side locking block 23, causing the locking block 23 to extend upwards out of the slide rail 22, thus better fitting the rotating connecting rod 3, allowing the rotating connecting rod 3 to rotate with the support block 2. When the support block 2 rotates counter-clockwise, the left-side locking block 23 generates a relative force.

[0030] The side of the locking block 23 extending out of the slide rail 22 is a vertically arranged flat surface 231. When the locking block 23 is inserted into the U-shaped groove 21, the flat surface 231 fits against the flat surface 31. The flat surface 231 increases the contact area between the locking block 23 and the flat surface 31, ensuring stable clamping.

[0031] To further enhance the stability and positional accuracy of the locking block 23 and prevent it from shifting under force, a limiting protrusion 221 extending into the slide rail 22 is provided at the top of the slide rail 22; a limiting groove 232 that mates with the limiting protrusion 221 is provided at the top of the locking block 23; when the flat surface 231 is in contact with the flat surface 31, the limiting protrusion 221 is engaged in the limiting groove 232.

[0032] To facilitate assembly, adjustment, and maintenance, a through groove 211 is provided on the outer side of the U-shaped groove 21, which connects to the slide rail 22. A pressure block 212 is detachably installed inside the through groove 211, and the pressure block 212 and the inner side wall of the through groove 211 form the slide rail 22. By disassembling the pressure block 212, the return spring 24 or the locking block 23 can be easily inspected and replaced.

[0033] In addition, to enhance the versatility and flexibility of the device, the support block 2 can be detachably installed on the rotating shaft 1, making it easy to replace the support block 2 with different specifications or materials according to actual needs.

[0034] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A curing oven rotary clamp apparatus, characterized by: The U-shaped slot is formed on the supporting block fixed on the rotating shaft, and the rotating connecting rod is clamped into the U-shaped slot; One end of the rotating connecting rod clamped into the U-shaped slot is milled flat to form a flat surface; The sliding groove is formed on the wall of the U-shaped slot and extends downwardly and outwardly, and the upper part of the sliding groove is communicated with the U-shaped slot; the clamping block is limitedly and slidably installed in the sliding groove, and the reset spring is arranged between the clamping block and the bottom of the sliding groove; under the action of the reset spring, the clamping block extends into the U-shaped slot, and the distance between the clamping block and the axis of the rotating connecting rod is less than the radius of the rotating connecting rod; under the action of external force, the clamping block can be retracted into the sliding groove.

2. A curing oven rotary clamp apparatus as claimed in claim 1, wherein: The one end of the rotating connecting rod clamped into the U-shaped slot is milled flat on both sides to form two flat surfaces arranged oppositely.

3. A curing oven rotary clamp apparatus as defined in claim 2, wherein: The left and right symmetrical sliding grooves are arranged on the two side walls of the U-shaped slot respectively, and a group of clamping blocks are slidably installed in each sliding groove.

4. A curing oven rotary clamp apparatus as defined in claim 1, wherein: The side of the clamping block extending out of the sliding groove is a vertical flat surface, and when the clamping block extends into the U-shaped slot, the flat surface is attached to the flat surface.

5. A curing oven rotary clamp apparatus as claimed in claim 4, wherein: The limiting protrusion extending into the sliding groove is arranged on the top of the sliding groove, and the limiting groove matched with the limiting protrusion is arranged on the top of the clamping block; when the flat surface is attached to the flat surface, the limiting protrusion is clamped into the limiting groove.

6. A curing oven rotary clamp apparatus as defined in claim 4, wherein: The through groove communicated with the sliding groove is arranged on the outer side of the wall of the U-shaped slot, and the pressing block is detachably installed in the through groove, and the sliding groove is surrounded by the pressing block and the inner side wall of the through groove.

7. A curing oven rotary clamp apparatus as defined in claim 1 wherein: The supporting block is detachably installed on the rotating shaft.

8. A curing oven rotary clamp apparatus as defined in claim 1 wherein: The guide inclined surfaces are arranged on the two sides of the slot of the U-shaped slot.

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