A glass cup production gripping device

Abstract

The application relates to the technical field of glass cup processing, and particularly discloses a glass cup production clamping device, which comprises an outer cup clamping module, an inner cup supporting module, a driving transmission module and a rack adjusting module; the outer cup clamping module is installed at the front end of a rotating main shaft; the driving transmission module drives the outer cup clamping module to rotate through the rotating main shaft. The patent aims to solve the problem that the existing support device cannot provide effective support and positioning from the inside of the inner glass cup, so that the inner cup and the outer cup are difficult to be centered and aligned.

Description

Technical Field

[0001] This utility model relates to the field of glass processing technology, and in particular to a glass production clamping device. Background Technology

[0002] In the glass manufacturing industry, double-walled glass cups are widely used due to their excellent thermal insulation properties. One of the key steps in their production process is to precisely insert the inner glass cup into the outer glass cup, ensuring they are coaxially aligned, followed by rotation, heating, and sealing. This process places extremely high demands on the positioning accuracy, stability, and motion capabilities of the clamping and supporting device.

[0003] Existing glass support devices primarily focus on external clamping of a single glass body. For example, Chinese utility model patent CN 221917776U discloses a support for a glass sealing machine, which uses adjustable clamping rods and plates to externally clamp the side wall of the glass to accommodate different glass sizes. While this type of device is effective for sealing single-layer glasses, it exhibits significant limitations when applied to the production of double-layer glasses. First, its clamping method only acts on the outside of the glass body, failing to provide effective support and positioning for the inner glass already placed inside the outer cup, making it difficult to achieve high-precision centering and alignment of the inner and outer cups. Second, this support has a single function, lacking the ability to drive the glass body to rotate, thus failing to meet the core process requirement of relative rotation between the inner and outer cups. If it were forcibly modified to clamp and drive the rotation of the outer cup, the inner cup, lacking internal support, would shift or slip due to inertia, severely impacting product quality and production efficiency.

[0004] Therefore, there is a core problem in the existing technology that has not yet been solved: how to achieve a self-centering support from the inside of the inner glass that can adapt to different sizes and ensure precise alignment with the outer glass without damaging the inner glass, while the support method must also meet the process requirements of stable relative rotation of the inner and outer glasses. Utility Model Content To address the shortcomings of existing technologies, the present invention provides a glass cup production clamping device that solves the problem that existing supports cannot provide effective support and positioning from inside the inner glass cup, making it difficult to center and align the inner and outer cups.

[0005] To solve the above problems, the technical solution adopted by this utility model is as follows: A glass cup production clamping device, comprising an outer cup clamping module, an inner cup support module, a drive transmission module, and a frame adjustment module; the outer cup clamping module is installed at the front end of a rotating spindle; the drive transmission module drives the outer cup clamping module to rotate through the rotating spindle; the inner cup support module is fixedly installed on the frame adjustment module; the outer cup clamping module and the inner cup support module are arranged opposite to each other to form a processing space; the inner cup support module includes an annular base plate, a shaft, and at least three claw assemblies; the annular base plate is fixed to the front part of the shaft, and at least three claw assemblies are evenly opened in its circumferential direction. A radial guide groove; the shaft is a threaded rod, and the distance from the front end of the shaft to the annular base plate is less than the depth of the inner glass cup; a frustum is connected to the rear of the shaft, and a threaded hole is provided in the center of the frustum. The threaded hole is threadedly connected to the shaft, and the upper bottom surface of the frustum faces the inner glass cup; each claw assembly includes a claw body and a driven part. The claw body is slidably installed in the radial guide groove of the annular base plate, and the driven part is connected to the claw body and the frustum through a connecting rod. One end of the connecting rod is rigidly connected to the claw body, and the other end of the connecting rod is slidably connected to the spiral structure on the outer surface of the frustum.

[0006] Compared with existing technologies, the beneficial effects of this solution are as follows: 1. The inner cup support module, through the design of a frustum, a spiral structure, and a claw assembly, converts the axial movement of the frustum into the synchronous radial movement of the claws, achieving expansion support from the inside of the inner cup to the outer wall. Multiple claws move synchronously under the constraint of radial guide grooves, automatically guiding and forcing the center of the inner cup to coincide with the support shaft axis, achieving self-centering of the inner cup, ensuring coaxial alignment of the inner and outer cups, and solving the alignment problem; 2. By combining the rotational drive of the outer cup clamping module with the static support of the inner cup support module, stable and reliable relative rotational movement between the inner and outer cups is achieved.

[0007] Furthermore, the spiral angles of the spiral structures are the same and are evenly distributed along the circumference of the frustum.

[0008] Furthermore, the spiral structure is a raised spiral guide rail that extends spirally from the bottom surface of the truncated cone to the bottom surface. The number of raised spiral guide rails is equal to the number of chucks. The raised spiral guide rails and the sliding shoe form a sliding pair. The connecting rod is hinged to the sliding shoe on the raised spiral guide rail of the truncated cone.

[0009] Furthermore, the spiral structure is a T-shaped spiral groove extending spirally from the bottom surface of the truncated cone to the bottom surface. The number of T-shaped rotating grooves is equal to the number of jaws. The T-shaped rotating grooves and the T-shaped slider form a sliding pair. The connecting rod is hinged to the T-shaped slider on the T-shaped rotating groove of the truncated cone.

[0010] Furthermore, a fastening nut is provided on the rear shaft of the truncated cone.

[0011] Furthermore, the chuck body is connected to the shaft via a return spring.

[0012] Furthermore, the outer cup clamping module includes at least three grippers and a clamping drive, which is a servo electric cylinder. The cylinder body is fixed on the rotating spindle, and the grippers are evenly distributed around the circumference of the clamping drive. Each gripper has a clamping block embedded in its inner wall.

[0013] Furthermore, the shape of the clamping block can be arc-shaped, conical, heart-shaped, or V-shaped.

[0014] Furthermore, the drive transmission module includes a drive motor, a transmission mechanism, and a rotating spindle. The transmission mechanism is a synchronous belt pulley set or a gear set. The rotating spindle is supported in the spindle box by at least two bearings, and the bearings are deep groove ball bearings. The drive motor is a servo motor or a stepper motor, and the output shaft is connected to the transmission mechanism.

[0015] Furthermore, the frame adjustment module includes a frame and a linear adjustment mechanism. The frame is a rectangular frame, and the linear adjustment mechanism is a combination of linear guide rails and sliders. The linear guide rails are arranged along the axis of the rotating spindle, and the inner cup support module is fixedly connected to the slider. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the inner cup support module structure of this utility model. Figure 1 .

[0018] Figure 3 This is a schematic diagram of the inner cup support module structure of this utility model. Figure 2 .

[0019] The reference numerals in the accompanying drawings include: 1. Outer cup clamping module; 11. Grippers; 12. Clamping drive unit; 21 Annular base plate; 22 Shaft; 23 Claw assembly; 231 Claw body; 2311 Return spring; 232 Driven part; 2321 Frustum; 2322 Connecting rod; 26 Fastening nut; 3. Drive transmission module; 31. Drive motor; 32. Transmission mechanism; 33. Rotary spindle; 34. Spindle box; 35. Bearing; 4. Rack adjustment module; 41. Rack; 42. Linear adjustment mechanism; 421. Linear guide rail; 422. Slider; 51 Outer glass; 52 Inner glass. Detailed Implementation

[0020] The following detailed description illustrates the specific implementation method: Example 1 The glass cup production clamping device provided in this application includes an outer cup clamping module 1, an inner cup support module, a drive transmission module 3, and a frame adjustment module 4. The outer cup clamping module 1 is mounted on the front end of a rotating spindle 33. The drive transmission module 3 drives the outer cup clamping module 1 to rotate via the rotating spindle 33. The inner cup support module is fixedly mounted on the frame adjustment module 4. The outer cup clamping module 1 and the inner cup support module are arranged opposite to each other to form a processing space. This structural arrangement allows the inner glass cup 52 and the outer glass cup 51 to be accurately positioned and stably clamped during the glass cup production process, and they can rotate relative to each other, meeting the requirements of the production process.

[0021] Specifically, the outer cup clamping module 1 includes at least three grippers 11 and a clamping drive 12.

[0022] The clamping drive 12 employs a servo electric cylinder, whose cylinder body is fixed to the rotating spindle 33 and rotates together with the spindle. The grippers 11 are evenly distributed circumferentially along the clamping drive 12. Each gripper 11 has a clamping block embedded in its inner wall. The clamping block can be arc-shaped, conical, heart-shaped, or V-shaped, and is embedded in a groove on the inner wall of the gripper 11, automatically guiding the outer glass cup 51 to its centered position when it enters. The clamping block is made of rubber, providing both cushioning and friction enhancement, effectively protecting the cup and improving clamping stability. When the clamping drive 12 actuates, it synchronously drives all grippers 11 to open or close radially, thereby achieving stable clamping and release of the outer glass cup 51, while ensuring that the grippers 11 and the drive 12 rotate synchronously.

[0023] Specifically, the inner cup support module includes an annular base plate 21, a shaft 22, and at least three claw assemblies 23.

[0024] An annular base plate 21 is fixed to the front of the shaft 22, and at least three radial guide grooves are evenly distributed around its circumference to guide the claw assembly 23 to slide only radially. The shaft 22 is a threaded rod with a rubber block at its front end, which can directly abut against the bottom of the inner glass cup 52 for cushioning and protection. The distance from the front end of the shaft 22 to the annular base plate 21 is less than the depth of the inner glass cup 52 to ensure that the claw can effectively support the side wall of the inner glass cup 52.

[0025] A frustum 2321 is connected to the rear of the shaft 22. The frustum 2321 has a threaded hole at its center, which is threaded into the shaft 22. The upper surface of the frustum 2321 faces the inner glass cup 52. The outer surface of the frustum 2321 has raised spiral guide rails, equal in number to the number of chucks, extending spirally from the upper surface of the frustum 2321 downwards. All guide rails have the same spiral angle and are evenly distributed around the circumference of the frustum 2321. A fastening nut 26 is provided on the shaft 22 at the rear of the frustum 2321. When the frustum 2321 moves to a suitable position, the fastening nut 26 is tightened to fix the frustum 2321 in place.

[0026] The number of claw assemblies 23 is at least three, preferably three, and they are evenly distributed circumferentially at 120°. Each claw assembly 23 includes a claw body 231 and a driven part 232. The claw body 231 is slidably mounted in the radial guide groove of the annular base plate 21, and its outer working surface is arc-shaped, with an anti-slip pad attached to enhance friction with the inner glass cup 52 wall. The claw body 231 is connected to the shaft 22 through a return spring 2311, and has a return function.

[0027] The driven part 232 is connected to the claw body 231 and the frustum 2321 via the connecting rod 2322. One end of the connecting rod 2322 is rigidly connected to the claw body 231, and the other end is connected to the slide shoe on the raised spiral guide rail of the frustum 2321 via a pin. The slide shoe slides directly against the side of the spiral guide rail, allowing it to withstand both thrust and tension. When the frustum 2321 is moved closer to the inner glass cup 52 by rotating it, the inclined surface of the spiral guide rail pushes the slide shoe in contact with it. Since the slide shoe is slidably connected to the spiral guide rail, and the connecting rod 2322 is hinged to the frustum 2321 via a pin, this thrust causes the connecting rod 2322 and the claw body 231 to move outward. Because the claw body 231 is confined within the radial guide groove of the annular base plate 21, the claw body 231 can only slide radially outward, thereby tightening the inner wall of the inner glass cup 52.

[0028] When the truncated cone 2321 moves away from the inner glass cup 52 by rotating the truncated cone 2321, the tension of the return spring 2311 begins to act, pulling the pawl body 231 towards the center, causing the connecting rod 2322 to move towards the center, the sliding shoe slides inward along the inclined surface of the spiral guide rail, the pawl body 231 retracts, and releases the support for the inner glass cup 52.

[0029] The design of the spiral guide rail allows the axial movement of the frustum 2321 to be converted into the radial movement of the chuck assembly 23.

[0030] Specifically, the drive transmission module 3 includes a drive motor 31, a transmission mechanism 32, and a rotating spindle 33.

[0031] The transmission mechanism 32 is a synchronous belt pulley set or a gear set. Synchronous belt drives have the advantages of smooth transmission and low noise; gear drives can provide greater torque. The rotating spindle 33 is supported in the spindle box 34 by at least two bearings 35. The bearings 35 are deep groove ball bearings 35, which can withstand radial loads and a certain axial load, ensuring the stable rotation of the spindle.

[0032] The drive motor 31 is a servo motor or a stepper motor. Its output shaft is connected to the transmission mechanism 32, which drives the transmission mechanism 32 to rotate, thereby driving the rotating spindle 33 to rotate.

[0033] Specifically, the rack adjustment module 4 includes a rack 41 and a linear adjustment mechanism 42.

[0034] The frame 41 is a rectangular frame welded from steel plates, which has good stability and load-bearing capacity. The linear adjustment mechanism 42 adopts a combination of linear guide rail 421 and slider 422. The linear guide rail 421 is arranged along the axis of the rotating main shaft 33. The inner cup support module is fixedly connected to the slider 422 to ensure that the inner cup support module can move smoothly along the axis of the rotating main shaft 33.

[0035] The implementation principle of this embodiment is as follows: This glass cup production clamping device achieves the centering and alignment of the inner and outer glass cups 51 of the double-layered glass cup through the coordinated work of each module. When installing the outer cup clamping module 1 and the inner cup support module on the machine base, it is necessary to ensure that the rotating spindle 33 and the shaft 22 are centered and aligned. On this basis, the outer cup clamping module 1 uses the jaws 11 and the clamping drive component 12 to stably clamp the outer glass cup 51. The special shape of the clamping block can automatically guide the outer glass cup 51 to be centered. The inner cup support module drives the jaw body 231 through the driven part 232 to support the inner glass cup 52, realizing the adaptive adjustment of the inner glass cup 52. The drive transmission module 3 provides power for the rotation of the outer glass cup 51, ensuring the rotation requirements during the production process. The frame adjustment module 4 is used to adjust the position of the inner cup support module.

[0036] Example 2 The difference from Embodiment 1 is that the raised spiral guide rail on the frustum 2321 is replaced by a T-shaped spiral groove machined on the outer surface of the frustum 2321, and the slipper at the end of the connecting rod 2322 is replaced by a T-shaped slider whose shape matches the T-shaped spiral groove. The T-shaped slider is embedded in the T-shaped rotating groove and can slide along the groove. When the frustum 2321 moves axially, the T-shaped spiral groove pushes or pulls the T-shaped slider, thereby driving the connecting rod 2322 to move, causing the claw body 231 to open or retract. The T-shaped groove provides all-around constraint on the slider, avoiding the risk of it falling off.

[0037] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A glass cup production clamping device, comprising an outer cup clamping module, an inner cup support module, a drive transmission module, and a frame adjustment module; the outer cup clamping module is mounted on the front end of a rotating spindle; the drive transmission module drives the outer cup clamping module to rotate via the rotating spindle; characterized in that: The inner cup support module is fixedly installed on the frame adjustment module; the outer cup clamping module and the inner cup support module are arranged opposite to each other to form a processing space; the inner cup support module includes an annular base plate, a shaft, and at least three claw assemblies; the annular base plate is fixed to the front of the shaft, and at least three radial guide grooves are evenly opened in its circumference; the shaft is a threaded rod, and the distance from the front end of the shaft to the annular base plate is less than the depth of the inner glass cup; a frustum is connected to the rear of the shaft, and a threaded hole is provided in the center of the frustum, which is threadedly connected to the shaft, and the upper bottom surface of the frustum faces the inner glass cup; each claw assembly includes a claw body and a driven part, the claw body is slidably installed in the radial guide groove of the annular base plate, and the driven part is connected to the claw body and the frustum through a connecting rod, one end of the connecting rod is rigidly connected to the claw body, and the other end of the connecting rod is slidably connected to a spiral structure on the outer surface of the frustum.

2. The glass cup production clamping device according to claim 1, characterized in that: The spiral structures have the same spiral angle and are evenly distributed along the circumference of the frustum.

3. The glass cup production clamping device according to claim 2, characterized in that: The spiral structure consists of a raised spiral guide rail extending spirally from the bottom surface of the truncated cone to the bottom surface. The number of raised spiral guide rails is equal to the number of chucks. The raised spiral guide rails and the sliding shoe form a sliding pair. The connecting rod is hinged to the sliding shoe on the raised spiral guide rail of the truncated cone.

4. A glass cup production clamping device according to claim 2, characterized in that: The spiral structure is a T-shaped spiral groove extending spirally from the top surface of the truncated cone to the bottom surface. The number of T-shaped rotating grooves is equal to the number of jaws. The T-shaped rotating grooves and the T-shaped slider form a sliding pair. The connecting rod is hinged to the T-shaped slider on the T-shaped rotating groove of the truncated cone.

5. A glass cup production clamping device according to claim 3 or 4, characterized in that: A fastening nut is provided on the rear shaft of the truncated cone.

6. A glass cup production clamping device according to claim 1, characterized in that: The chuck body is connected to the shaft via a return spring.

7. A glass cup production clamping device according to claim 1, characterized in that: The outer cup clamping module includes at least three jaws and a clamping drive. The clamping drive is a servo electric cylinder, with its cylinder body fixed on the rotating spindle. The jaws are evenly distributed around the clamping drive, and each jaw has a clamping block embedded in its inner wall.

8. A glass cup production clamping device according to claim 7, characterized in that: The shape of the clamp can be arc-shaped, conical, heart-shaped, or V-shaped.

9. A glass cup production clamping device according to claim 1, characterized in that: The drive transmission module includes a drive motor, a transmission mechanism, and a rotating spindle. The transmission mechanism is a synchronous belt pulley set or a gear set. The rotating spindle is supported in the spindle box by at least two bearings, which are deep groove ball bearings. The drive motor is a servo motor or a stepper motor, and its output shaft is connected to the transmission mechanism.

10. A glass cup production clamping device according to claim 1, characterized in that: The frame adjustment module includes a frame and a linear adjustment mechanism. The frame is a rectangular frame, and the linear adjustment mechanism is a combination of linear guide rails and sliders. The linear guide rails are arranged along the axis of the rotating spindle, and the inner cup support module is fixedly connected to the slider.

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