Vacuum chuck structure for positioning workpiece

Abstract

The utility model discloses a vacuum chuck structure for positioning a workpiece, which comprises a positioning frame, a supporting strip is arranged on the inner side in the positioning frame, mounting rails are arranged on the two sides in the positioning frame, mounting parts are arranged in the mounting rails in a sliding manner, a supporting rail is arranged on the mounting parts, and the supporting rail is arranged on the positioning frame. A supporting block is slidably arranged in the supporting rail, a vacuum chuck body is arranged above the supporting block and above one side of the mounting part, a two-way threaded rod is arranged on the inner side of the supporting strip, a threaded opening is formed in one side of the supporting rail, and an adjusting assembly is arranged at the bottom of the other side of the supporting rail; the third motor drives the two-way threaded rod to rotate, namely, the distance between the vacuum chucks on the left side and the right side is adjusted, the second motor drives the driving gear to rotate, and the distance between the vacuum chucks on the front side and the rear side is adjusted through transmission, namely, adjustment is conducted according to the size of a workpiece, so that the stability of the workpiece during fixing is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of vacuum chuck technology, specifically a vacuum chuck structure for positioning workpieces. Background Technology

[0002] Vacuum suction cups, also known as vacuum lifters, are actuators in vacuum equipment. There are various types of vacuum suction cups. Rubber suction cups can operate at high temperatures, while silicone rubber suction cups are well-suited for gripping rough surfaces. Polyurethane suction cups are very durable. Furthermore, in actual production, if oil resistance is required, materials such as polyurethane, nitrile rubber, or vinyl-containing polymers can be considered for manufacturing the suction cups.

[0003] Existing vacuum chucks typically use four or more chucks to adsorb and position workpieces from the bottom. However, current vacuum chucks can only adsorb workpieces of a suitable size, and the spacing between the chucks cannot be adjusted according to the length and width of the workpiece. This results in instability on the outer side of the workpiece when adsorbing larger workpieces. Utility Model Content

[0004] The purpose of this invention is to provide a vacuum suction cup structure for positioning workpieces, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A vacuum suction cup structure for positioning a workpiece includes a positioning frame, a support bar inside the positioning frame, a limit bar in front of the support bar, a slide rail on the support bar, a limit component slidably mounted above the slide rail, electric push rods on both sides above the positioning frame, limit blocks on the electric push rods, mounting rails on both sides inside the positioning frame, mounting components slidably mounted inside the mounting rails, a support rail on the mounting component, a support block slidably mounted inside the support rail, a vacuum suction cup body above the support block and above one side of the mounting component, a bidirectional threaded rod inside the support bar, a threaded opening on one side of the support rail, the bidirectional threaded rod and the threaded opening being threadedly connected, and an adjustment component at the bottom of the other side of the support rail for adjusting the distance between the front and rear vacuum suction cup bodies.

[0007] In a preferred embodiment of this utility model, a first screw is provided on the inner side of the slide rail, and a first threaded opening is provided at the bottom of the limiting member, wherein the first screw and the first threaded opening are threadedly connected.

[0008] In a preferred embodiment of this utility model, a first motor is provided on one side of the slide rail, and the drive shaft of the first motor is connected to a first screw.

[0009] In a preferred embodiment of this utility model, a third motor is provided on one side of the outer side of the positioning frame, and the drive shaft of the third motor is connected to a bidirectional threaded rod.

[0010] In a preferred embodiment of the present invention, the adjustment component includes a rotating port, and a rotating element is rotatably disposed inside the rotating port.

[0011] In a preferred embodiment of this utility model, a second threaded opening is provided on the inner side of the rotating component, and a second screw is provided at the bottom of the support block, wherein the second threaded opening and the second screw are threadedly connected.

[0012] In a preferred embodiment of this utility model, a second motor is provided above the rotating port, a drive gear is provided on the drive shaft of the second motor, a driven gear is provided on one side of the rotating component, and the drive gear and the driven gear mesh through a synchronous belt.

[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

[0014] Beneficial effects: The workpiece is placed on the support bar and limited by the limiting components, limiting bars, and limiting blocks. The workpiece is adsorbed at the bottom by the vacuum suction cups. The third motor drives the bidirectional threaded rod to rotate, so that the mounting parts on both sides slide outward or inward at the same time, thereby adjusting the distance between the vacuum suction cups on the left and right sides. The second motor drives the drive gear to rotate, and through gear transmission, the rotating parts rotate. Through the inner thread transmission, the second screw drives the support block to slide back and forth, thereby adjusting the distance between the front and rear vacuum suction cups, that is, adjusting according to the size of the workpiece, thus ensuring the stability of the workpiece when it is fixed.

[0015] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it according to the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. The specific implementation methods of this utility model are given in detail in the following embodiments and their accompanying drawings. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0017] Figure 1This is a schematic diagram of the main structure of a vacuum chuck structure used for positioning workpieces;

[0018] Figure 2 This is a schematic diagram of the positioning frame structure in a vacuum chuck structure used for positioning workpieces;

[0019] Figure 3 This is a schematic diagram of the mounting components and support block structure in a vacuum chuck structure used for positioning workpieces;

[0020] Figure 4 This is a schematic diagram of the adjustment component in a vacuum chuck structure used for positioning workpieces.

[0021] In the diagram: 1. Positioning frame; 11. Support bar; 12. Slide rail; 13. Limiting component; 14. First screw; 2. Limiting bar; 21. Electric push rod; 22. Limiting block; 23. First threaded port; 24. First motor; 3. Mounting rail; 31. Bidirectional threaded rod; 32. Third motor; 33. Mounting component; 34. Threaded port; 4. Vacuum suction cup body; 41. Support rail; 42. Supporting block; 43. Second screw; 44. Rotating port; 45. Rotating component; 5. Second threaded port; 51. Second motor; 52. Drive gear; 53. Driven gear. Detailed Implementation

[0022] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0023] Please refer to Figures 1-4This utility model discloses a vacuum suction cup structure for positioning a workpiece, including a positioning frame 1. A support strip 11 is provided inside the positioning frame 1. The positioning frame 1 is an installation structure used to install other structures. The support strip 11 supports the inside of the workpiece. A limit strip 2 is provided in front of the support strip 11 to limit the front of the workpiece. A slide rail 12 is provided on the support strip 11. A limit element 13 is slidably arranged above the slide rail 12. A first screw 14 is provided inside the slide rail 12. A first thread 23 is provided at the bottom of the limit element 13. The first screw 14 and the first thread 23 are connected. The opening 23 is threaded. The limiting member 13 is locked above the slide rail 12 by the first screw 14 and slides. A first motor 24 is provided on one side of the slide rail 12. The drive shaft of the first motor 24 is connected to the first screw 14. That is, the first motor 24 drives the first screw 14 to rotate, thereby causing the limiting member 13 to slide, thus limiting the rear of the workpiece. Electric push rods 21 are provided on both sides above the positioning frame 1. Limiting blocks 22 are provided on the electric push rods 21. The limiting blocks 22 are pushed by the electric push rods 21, thereby limiting the two sides of the workpiece.

[0024] The positioning frame 1 has mounting rails 3 on both sides inside. The mounting rails 3 are mounting structures. Mounting parts 33 are slidably mounted inside the mounting rails 3. The mounting parts 33 are locked in the mounting rails 3 and slide. The mounting parts 33 have support rails 41. The support rails 41 have support blocks 42 slidably mounted inside the support rails 41. The support blocks 42 are locked in the support rails 41 and slide. The support blocks 42 and the mounting parts 33 are mounted on one side of a vacuum suction cup body 4. The vacuum suction cup body 4 is a vacuum suction cup used to adsorb the workpiece at the bottom. The support bar 11 has a bidirectional threaded rod 31 on the inside. The support rail 41 has a threaded opening 34 on one side. The bidirectional threaded rod 31 and the threaded opening 34 are threadedly connected. The threads on both sides of the bidirectional threaded rod 31 are opposite in direction. The positioning frame 1 has a third motor 32 on one side outside. The drive shaft of the third motor 32 is connected to the bidirectional threaded rod 31. That is, the third motor 32 drives the bidirectional threaded rod 31 to rotate, so that the mounting parts 33 on both sides slide outward or inward at the same time, that is, adjust the distance between the vacuum suction cups on the left and right sides.

[0025] An adjustment assembly is provided on the bottom of the other side of the support rail 41. The adjustment assembly is used to adjust the distance between the front and rear vacuum suction cups. The adjustment assembly includes a rotating port 44, inside which a rotating component 45 is rotatably installed. The rotating component 45 is locked inside the rotating port 44 and rotates. A second threaded port 5 is provided on the inner side of the rotating component 45. A second screw 43 is provided at the bottom of the support block 42. The second threaded port 5 and the second screw 43 are threadedly connected. A second motor 51 is provided above the rotating port 44. A drive gear 52 is provided on the drive shaft of the second motor 51. A driven gear 53 is provided on one side of the rotating component 45. The drive gear 52 and the driven gear 53 are meshed by a synchronous belt. That is, the second motor 51 drives the drive gear 52 to rotate. Through gear transmission, the rotating component 45 rotates. Through the inner thread transmission, the second screw 43 drives the support block 42 to slide back and forth, thereby adjusting the distance between the front and rear vacuum suction cups.

[0026] The working principle of this utility model is as follows: The workpiece is placed on the support bar 11. The first motor 24 drives the first screw 14 to rotate, thereby causing the limiting member 13 to slide, that is, limiting the rear of the workpiece. The limiting bar 2 limits the front of the workpiece. The electric push rod 21 pushes the limiting block 22, thereby limiting the two sides of the workpiece. The vacuum suction cups adsorb the workpiece at the bottom. The third motor 32 drives the bidirectional threaded rod 31 to rotate, thereby causing the two mounting members 33 to slide outward or inward at the same time, that is, adjusting the distance between the left and right vacuum suction cups. The second motor 51 drives the drive gear 52 to rotate. Through gear transmission, the rotating member 45 rotates. Through the inner thread transmission, the second screw 43 drives the support block 42 to slide back and forth, thereby adjusting the distance between the front and rear vacuum suction cups, that is, adjusting according to the size of the workpiece, thereby ensuring the stability of the workpiece when it is fixed.

[0027] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A vacuum chuck structure for positioning a workpiece, comprising a positioning frame (1), characterized in that: The positioning frame (1) has a support bar (11) inside its inner side. A limit bar (2) is provided in front of the support bar (11). A slide rail (12) is provided on the support bar (11). A limit piece (13) is slidably provided above the slide rail (12). Electric push rods (21) are provided on both sides above the positioning frame (1). A limit block (22) is provided on the electric push rod (21). Mounting rails (3) are provided on both sides inside the positioning frame (1). Mounting pieces (33) are slidably provided inside the mounting rails (3). A mounting piece (33) is provided on the mounting piece (33). A support rail (41) is provided, and a support block (42) is slidably arranged inside the support rail (41). A vacuum suction cup body (4) is arranged above the support block (42) and above one side of the mounting part (33). A bidirectional threaded rod (31) is arranged inside the support bar (11). A threaded opening (34) is arranged on one side of the support rail (41). The bidirectional threaded rod (31) and the threaded opening (34) are threadedly connected. An adjustment component is arranged at the bottom of the other side of the support rail (41). The adjustment component is used to adjust the distance between the front and rear vacuum suction cup bodies (4).

2. The vacuum chuck structure for positioning a workpiece according to claim 1, wherein, The slide rail (12) is provided with a first screw (14) on its inner side, and the limiting member (13) is provided with a first screw hole (23) at its bottom. The first screw (14) and the first screw hole (23) are threadedly connected.

3. The vacuum chuck structure for positioning a workpiece according to claim 1, wherein, A first motor (24) is provided on one side of the slide rail (12), and the drive shaft of the first motor (24) is connected to the first screw (14).

4. The vacuum chuck structure for positioning a workpiece according to claim 1, wherein, A third motor (32) is provided on one side of the outer side of the positioning frame (1), and the drive shaft of the third motor (32) is connected to a bidirectional threaded rod (31).

5. The vacuum chuck structure for positioning a workpiece according to claim 1, wherein, The adjustment assembly includes a rotating port (44), and a rotating component (45) is rotatably disposed inside the rotating port (44).

6. A vacuum chuck structure for positioning a workpiece according to claim 5, wherein The rotating part (45) has a second screw (5) on its inner side, and the support block (42) has a second screw (43) at its bottom. The second screw (5) and the second screw (43) are threaded together.

7. The vacuum chuck structure for positioning a workpiece according to claim 5, wherein A second motor (51) is provided above the rotating port (44). A drive gear (52) is provided on the drive shaft of the second motor (51). A driven gear (53) is provided on one side of the rotating part (45). The drive gear (52) and the driven gear (53) mesh through a synchronous belt.

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