Positioning tool for glass edge machining

Abstract

The invention relates to the field of workpiece positioning devices, in particular to a positioning tool for glass edge machining. The positioning tool for glass edge machining comprises a workbench and a control assembly, the workbench is provided with sucker assemblies in groups, each sucker assembly comprises a vacuum sucker and a lifting floating structure arranged at the bottom of the vacuum sucker, and each lifting floating structure comprises a fixing base and a floating rod movably installed on the fixing base in a guiding mode. A locking structure is arranged between the floating rod and the fixing base, and the control assembly is in control connection with the negative pressure gas circuits of the vacuum suction cups of the suction cup assemblies and the locking structure of the suction cup assemblies. The tool can be suitable for glass of various shapes and sizes, the corresponding suction cup assemblies can be selected according to the specific shapes and sizes of the glass, and therefore the tool is better in applicability and higher in use flexibility.

Description

Technical Field

[0001] The invention relates to the field of workpiece positioning devices, in particular to a positioning tool for glass edge processing. Background Art

[0002] In the bus industry, buses use different types of window glass, such as sliding window glass for bus side windows, insulating glass for side windows or front windshields, and small-area glass for corner windows. The common shape of sliding window glass is rectangular. In some specially designed buses, sliding window glass may also be trapezoidal; insulating glass is rectangular when used as side window glass, and arc-shaped when used as front windshield. In some high-end buses or buses for special purposes, irregular-shaped insulating glass may also be used to increase the uniqueness and aesthetics of the vehicle; small-area glass is usually triangular. In some specially designed buses, small-area glass may also be irregularly shaped. The above different types of window glass are subject to the design requirements of different types of bus body structures, and the sizes of the glass are also the same. Therefore, there are more than a thousand types and specifications of window glass on the bus glass production line. After the glass is manufactured, its edges need to be brushed or ground, so it needs to be positioned with a positioning tool to facilitate the edge processing of the glass.

[0003] The Chinese utility model patent with the authorization announcement number CN221871418U discloses a glass edge grinding positioning tool, which includes a workbench and a first suction cup arranged in a circular array at the center of the upper surface of the workbench and fixed in position. A second suction cup that can move freely along the circumference radial direction is arranged outside the circumference of the first suction cup. The second suction cup can be moved close to the first suction cup or away from the second suction cup to meet the positioning requirements of glass of different sizes. The positioning tool can only meet the positioning requirements of glass of a specific shape. If the positioning tool is used to position glass of other shapes, when processing the edges of the glass, interference between the processing equipment and the suction cup will occur, making it inconvenient to process the edges of the glass.

[0004] To solve the above problems, the Chinese utility model patent with authorization announcement number CN218904700U discloses a positioning device for processing special-shaped glass, which includes a rectangular positioning frame and a suction cup positioning structure evenly distributed along the length and width directions of the positioning frame. The suction cup positioning structure includes four groups of suction cups and a positioning plate provided at the bottom of the four groups of suction cups for fixing the four groups of suction cups, and also includes a driving mechanism connected to the bottom of the positioning plate for controlling the lifting of the four groups of suction cups. The driving mechanism includes a piston rod and a cylinder assembly connected to one end of the piston rod for controlling the lifting of the piston rod. The driving mechanism is connected to the positioning plate through the other end of the piston rod. When in use, special-shaped glasses of various shapes are placed on the suction cup positioning structure of the positioning device. The cylinder assembly is controlled to work according to the suction cup positioning structure used to cover the glass. The cylinder assembly drives the piston rod to rise, thereby driving the four groups of suction cup assemblies on the positioning plate to a certain height. Since there is a certain height difference between the lifted suction cup assembly and the non-lifted suction cup assemblies on other suction cup positioning structures, it is avoided that when processing the edges of the glass, the processing equipment interferes with the other suction cups that are not adsorbed to the glass.

[0005] The above-mentioned positioning device can position glass of different shapes, but the device is only suitable for glass that can be completely covered by one group of suction cup positioning structures or multiple groups of suction cup positioning structures. One group of suction cup positioning structures of the device is provided with four groups of suction cups, and the cylinder assembly of each suction cup positioning structure drives the four groups of suction cups to rise at the same time. When the device is used to position small-sized glass, because the area of ​​the glass is smaller than the area enclosed by the four suction cup assemblies, it is inevitable that there will be suction cups in the four suction cup assemblies that are not completely covered by the glass or the suction cups are just at the edge of the glass. In this case, when processing the edges of the glass, it is still inconvenient to process the edges of the glass because the suction cups are at the edge of the glass, and the processing equipment will interfere with the suction cups on the positioning device. Therefore, the applicability of the device is not strong and the flexibility of use is not high. Summary of the invention

[0006] The purpose of the present invention is to provide a positioning tool for glass edge processing, so as to solve the problem that when the existing positioning device is used to position small-area glass, the suction cup on the positioning device interferes with the edge processing equipment, thereby affecting the glass edge processing.

[0007] To achieve the above-mentioned purpose, the positioning tool for glass edge processing of the present invention adopts the following technical solutions: A positioning tool for glass edge processing includes a workbench and a control component. The workbench is provided with a group of suction cup components. The suction cup components include vacuum suction cups and a lifting and floating structure arranged at the bottom of the vacuum suction cups. The lifting and floating structure includes a fixed seat for fixed connection with the workbench and a floating rod installed on the fixed seat for guiding movement in the up and down directions. A locking structure is arranged between the floating rod and the fixed seat. The control component is controlled and connected with the negative pressure air path of the vacuum suction cups of each suction cup component and the locking structure of each suction cup component. When the vacuum suction cups absorb the glass placed thereon and are driven upward to a set height by the glass, the control component controls the locking structure of the rising suction cup component to lock the floating rod.

[0008] Furthermore, the groups of suction cup assemblies are arranged in a rectangular array.

[0009] Furthermore, the fixing seat includes a fixing plate and a guide cylinder fixedly connected to the fixing plate, both ends of the guide cylinder are provided with a cylinder bottom, both cylinder bottoms are provided with coaxial guide holes, the floating rod passes through the guide hole, and the locking structure is arranged in the inner cavity of the guide cylinder.

[0010] Further, the locking structure is a pneumatic clamp for clamping the floating rod.

[0011] Further, the floating rod is provided with a supporting buffer spring for providing an upward force thereto.

[0012] Furthermore, the supporting buffer spring is sleeved on the floating rod and is located between the vacuum suction cup and the guide cylinder.

[0013] Further, the vacuum suction cup is detachably connected to the top of the floating rod.

[0014] Furthermore, the floating rod is a hollow rod, and its inner cavity is communicated with the air suction port of the vacuum suction cup, and the lower end of the floating rod has a connection port for connecting to a vacuum pump.

[0015] Furthermore, the workbench is a frame-type workbench composed of parallel and spaced-apart crossbeams and longitudinal beams arranged between the crossbeams, the grouped suction cup assemblies are arranged in frame holes of the frame-type workbench, and the fixing plates of the suction cup assemblies are connected to the frame edges.

[0016] Beneficial effects: The positioning tool for glass edge processing of the present invention is a pioneering invention, specifically, including a workbench and a control component, the workbench is provided with a group of suction cup components, each group of suction cup components includes a vacuum suction cup and a lifting and floating structure arranged at the bottom of the vacuum suction cup, the lifting and floating structure includes a fixed seat and a floating rod installed in the fixed seat for guiding movement, a locking structure is arranged between the floating rod and the fixed seat, and the control component is connected to the negative pressure gas path of the vacuum suction cup of each suction cup component and the locking structure of each suction cup component. When in use, the glass is placed on the vacuum suction cup on the top of the suction cup component arranged in groups and the vacuum suction cup is prevented from being in full contact with the edge of the glass. Then, the control component is used to establish a vacuum for the vacuum suction cup that is in full contact with the glass, and then the material gripper is used to lift the glass upwards, and then the vacuum suction cup will also drive the floating rod to be lifted. When lifted to a predetermined height, the locking structure is controlled by the control component, and the locking structure is actuated to lock the floating rod to a set position. At this time, the glass is supported and fixed at a predetermined position with a certain height by the suction cup component, and then the processing equipment can perform edge processing on the glass. When positioning the glass, the device can select the corresponding suction cup assembly according to the specific shape and size of the glass, so it can be suitable for glasses of various shapes and sizes. Therefore, the positioning tool of the present invention has better applicability and higher flexibility in use, and solves the problem that when the existing positioning device positions small-area glass, the suction cup is located at the edge of the glass and the processing equipment interferes with the suction cup on the positioning device, thereby affecting the processing of the glass edge. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of an embodiment of a positioning tool for glass edge processing of the present invention; Figure 2 for Figure 1 Schematic diagram of the positioning tool in use; Figure 3 for Figure 1 Schematic diagram of the suction cup assembly.

[0018] In the figure: 1. workbench; 2. control assembly; 3. suction cup assembly; 4. vacuum suction cup; 5. fixing seat; 51. guide cylinder; 50. guide hole; 52. barrel bottom; 6. floating rod; 61. connection port; 7. fixing plate; 71. connection hole; 9. support buffer spring; 10. glass. DETAILED DESCRIPTION

[0019] The present invention provides a group of suction cup assemblies on a workbench of a positioning tool, each suction cup assembly includes a vacuum suction cup and a lifting and floating structure arranged at the bottom of the vacuum suction cup, the lifting and floating structure includes a fixed seat fixedly connected to the workbench and a floating rod installed on the fixed seat in a guiding and movable manner in the up and down directions, and a locking structure is arranged between the floating rod and the fixed seat. The positioning tool also includes a control assembly connected to the negative pressure air path of each vacuum suction cup and each locking structure. The vacuum suction cups of the suction cup assembly arranged in groups are combined according to the specific shape and size of the glass to be positioned so as to adsorb and fix the glass, and at the same time, the vacuum suction cups can be manually adjusted to avoid being at the edge of the glass to affect the edge processing of the glass; the glass is lifted by means of an external material gripper, and the glass drives the vacuum suction cup and the lifting rod connected to the bottom of the vacuum suction cup to rise upward, and when it rises to a predetermined height, the locking structure arranged in the fixed seat is controlled by the control assembly to lock the floating rod, so that the vacuum suction cup adsorbing the glass is positioned to a predetermined height, and the vacuum suction cup not adsorbed with the glass is still in the original position. Then the outer edge of the glass is processed. At this time, the processing equipment will not interfere with other suction cup components on the positioning device that are not positioned by glass adsorption. At the same time, there is no situation where the vacuum suction cup positioned by glass adsorption is on the edge of the glass, which facilitates the edge processing of the glass.

[0020] Based on the above concept, Figure 1 and Figure 3 As shown, the positioning tool for glass edge processing of the present invention includes a workbench 1 and a control component 2. A group of suction cup components 3 are provided on the workbench 1. The suction cup components 3 include vacuum suction cups 4 and a lifting and floating structure arranged at the bottom of the vacuum suction cups 4. The lifting and floating structure includes a fixed seat 5 for fixed connection with the workbench 1 and a floating rod 6 which is movably installed on the fixed seat 5 in the up and down directions. A locking structure is arranged between the floating rod 6 and the fixed seat 5. The control component is controlled and connected with the negative pressure air path of the vacuum suction cups 4 of each suction cup component 3 and the locking structure of each suction cup component 3. When the vacuum suction cup 4 absorbs the glass 10 placed thereon and is driven upward to a set height by the glass 10, the control component 2 controls the locking structure of the rising suction cup component 3 to lock the floating rod 6.

[0021] The groups of suction cup assemblies 3 are arranged on the workbench in a rectangular array. In other embodiments, the suction cup assemblies 3 may also be distributed on the workbench in a circular array.

[0022] In the initial state, the suction cup assembly 3 on the workbench 1 is in an original free state. Figure 2As shown, the incoming material gripper places the glass 10 on the vacuum suction cup 4 of the suction cup assembly 3 of the workbench 1, and adjusts the placement position of the glass 10 so that the vacuum suction cup 4 that is in full contact with the glass 10 is located in the middle position of the glass 10, and avoids the vacuum suction cup 4 that is in full contact with the glass 10 being located at the edge position of the glass 10, and then controls the vacuum suction cup 4 through the control assembly to generate negative pressure and adsorb the glass, the vacuum suction cup 4 that is in full contact with the glass 10 will successfully establish vacuum and be adsorbed to the glass 10, and the remaining vacuum suction cups 4 that are not in contact with the glass 10 or not in full contact with the glass 10 cannot successfully establish vacuum.

[0023] Then the incoming material gripper drives the glass to be lifted upward, and the vacuum suction cup 4 that has established vacuum will drive the floating rod 6 connected to its bottom to be lifted together with the glass 10. When it is lifted to a predetermined height, the control component 2 is opened and the locking structure is controlled to act. The locking structure locks the floating rod 6, thereby locking the vacuum suction cup 4 with the glass 10 adsorbed at a predetermined height, and the vacuum suction cup 4 that is not in full contact with the glass 10 is still in the original position. Then the glass 10 is processed by edge processing. At this time, during processing, it can be ensured that the processing equipment and the suction cup assembly 3 of the positioning tool do not interfere with each other. The positioning tool of the present invention has better flexibility in use. The glass 10 can be of any desired shape and size. When in use, according to the specific shape and size of the glass 10, a suction cup assembly that can be in full contact with the glass 10 and is not at the edge of the glass 10 is selected and combined together to position the glass 10, and when in use, each suction cup assembly can be controlled simultaneously by the control component, so it is more convenient to use.

[0024] The fixed seat 5 includes a fixed plate 7 and a guide cylinder 51 fixedly connected to the fixed plate 5. Both ends of the guide cylinder 51 are provided with a cylinder bottom 52. Both cylinder bottoms 52 are provided with coaxial guide holes 50. The floating rod 6 passes through the guide hole 50. The locking structure is arranged in the inner cavity of the guide cylinder. The fixed plate 7 is provided with a connecting hole 71. The connecting hole 71 on the fixed plate 7 is matched with the corresponding mounting hole on the workbench 1, and the threaded fasteners are respectively passed through the connecting hole 71 and the corresponding mounting hole on the workbench to fix the guide seat 5 on the workbench 1. In other embodiments, the fixed seat includes a fixed support plate, the fixed support plate is provided with a slide rail, and the floating rod 6 is provided with a slide groove. In the vertical plane, the floating rod 6 can slide up and down along the slide rail on the fixed support plate to achieve guided movement and installation on the fixed seat 5.

[0025] The locking structure is a pneumatic clamp for clamping the floating rod 6. When the floating rod 6 rises to a set height along with the glass 10, the control assembly 2 controls the pneumatic clamp to lock the floating rod 6, thereby locking the vacuum suction cup 4 with the glass 10 adsorbed on the top of the floating rod 6 at the set height. In other embodiments, a rack structure extending up and down is provided on one side of the floating rod 6, and the locking structure is an electromagnet. The end of the iron core of the electromagnet is provided with an end face tooth structure adapted to the rack structure, and a tension spring is provided at the tail of the iron core. When the electromagnet is energized, the iron core moves toward the floating rod and is combined with the rack structure through the end face tooth, so as to keep the floating rod at the height position. When the electromagnet is de-energized, the tension spring pulls the iron core to a reset state, thereby releasing the locking structure from locking the floating rod.

[0026] When the incoming material gripper places the glass on the vacuum suction cup 4, in order to provide the suction cup assembly 3 with a downward buffering force to prevent the floating rod 6 of the suction cup assembly from suddenly falling to the fixed seat after bearing the gravity of the glass and shattering the glass, preferably, a support buffer spring 9 is arranged on the floating rod 6 to provide it with an upward force. The support buffer spring 9 is sleeved on the floating rod 6 and is located between the vacuum suction cup 4 and the guide cylinder 51. In other embodiments, one end of the support buffer spring 9 can also be fixed on the floating rod 6, and the other end can be fixed on the guide cylinder 51.

[0027] In order to facilitate the replacement of the vacuum suction cup 4, in a preferred embodiment, the vacuum suction cup 4 is detachably connected to the top of the floating rod, for example, the vacuum suction cup 4 is threadedly connected to the floating rod 6. Of course, in other implementations, the vacuum suction cup 4 and the floating rod 6 can also be set as an integrated structure.

[0028] The floating rod 6 is a hollow rod, and its inner cavity is connected to the air suction port of the vacuum suction cup 4. The vacuum pump configured for the vacuum suction cup 4 is connected to the lower end of the floating rod 6 through a negative pressure air path. Of course, in other embodiments, the floating rod 6 can also be a solid rod, and the vacuum pump can be directly connected to the vacuum suction cup 4 through an external air pipe, and the external air pipe is connected to the inner cavity of the vacuum suction cup 4.

[0029] The workbench 1 is a frame-type workbench 1 composed of horizontal beams 11 arranged at intervals in a flat shape and longitudinal beams 12 arranged between the horizontal beams 11. The grouped suction cup assemblies 3 are arranged in a rectangular array in the frame hole of the frame-type workbench. The frame edge of the frame-type workbench is provided with the mounting holes. The fixed plate 7 is arranged on the outer side of the guide cylinder 51 in parallel with the lifting rod 6. The suction cup assembly 3 arranged in the frame hole is fixedly connected to the frame edge constituting the frame hole through the fixed plate 7. In other embodiments, the workbench may also be composed of a top supporting connecting plate and a support leg arranged at the bottom of the top supporting connecting plate. At this time, the fixed plate 7 is perpendicular to the lifting rod 6 and is arranged on the outer side of the guide cylinder 51. The suction cup assembly 3 is fixedly connected to the top connecting plate through the fixed plate 7. The top connecting plate is provided with an avoidance through hole for passing the floating rod 6 at a position corresponding to the guide hole 50 at the end of the guide cylinder 51.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The patent protection scope of the present invention shall be based on the claims. All equivalent structural changes made using the contents of the description and drawings of the present invention should also be included in the protection scope of the present invention.

Claims

1. A positioning tool for glass edge processing, characterized in that: It includes a workbench and a control component. The workbench is provided with a group of suction cup components. The suction cup components include a vacuum suction cup and a lifting and floating structure arranged at the bottom of the vacuum suction cup. The lifting and floating structure includes a fixed seat fixedly connected to the workbench and a floating rod installed on the fixed seat for guiding movement in the up and down directions. A locking structure is arranged between the floating rod and the fixed seat. The control component is controlled and connected with the negative pressure air path of the vacuum suction cup of each suction cup component and the locking structure of each suction cup component. When the vacuum suction cup absorbs the glass placed thereon and is driven upward to a set height by the glass, the control component controls the locking structure of the rising suction cup component to lock the floating rod.

2. The positioning tool for glass edge processing according to claim 1, characterized in that: The groups of suction cup assemblies are arranged in a rectangular array.

3. The positioning tool for glass edge processing according to claim 1 or 2, characterized in that: The fixing seat includes a fixing plate and a guide cylinder fixedly connected to the fixing plate. Both ends of the guide cylinder are provided with a cylinder bottom, and both cylinder bottoms are provided with coaxial guide holes. The floating rod passes through the guide hole, and the locking structure is arranged in the inner cavity of the guide cylinder.

4. The positioning tool for glass edge processing according to claim 3, characterized in that: The locking mechanism is a pneumatic clamping jaw used to clamp the floating rod.

5. The positioning tool for glass edge processing according to claim 1 or 2, characterized in that: The floating rod is provided with a supporting buffer spring which provides an upward force thereto.

6. The positioning tool for glass edge processing according to claim 5, characterized in that: The supporting buffer spring is sleeved on the floating rod and is located between the vacuum suction cup and the guide cylinder.

7. The positioning tool for glass edge processing according to claim 1 or 2, characterized in that: The vacuum cup is detachably connected to the top of the floating rod.

8. The positioning tool for glass edge processing according to claim 1 or 2, characterized in that: The floating rod is a hollow rod, and its inner cavity is communicated with the air suction port of the vacuum suction cup. The lower end of the floating rod is provided with a connection port for connecting with a vacuum pump.

9. The positioning tool for glass edge processing according to claim 2, characterized in that: The workbench is a frame-type workbench composed of parallel and spaced crossbeams and longitudinal beams arranged between the crossbeams. The grouped suction cup assemblies are arranged in frame holes of the frame-type workbench, and the fixing plates of the suction cup assemblies are connected to the frame edges.

Images