Positioning tool suitable for batch clamping and transferring of workpieces

Abstract

This utility model discloses a positioning fixture suitable for batch clamping and transferring of workpieces, including a base, a support plate on the base for supporting a carrier, and locking members on both sides of the carrier for locking the workpieces thereon. Support columns fixed to the support plate are located at both ends of the outer side of the carrier. A column is connected to the top of each support column via a quick-connect structure, and a pressing plate is fixed to the top of each column. The lower surface of the pressing plate presses against the upper surface of the workpiece. A pressing assembly is also fixed to the base, located on both sides of the carrier, which presses the carrier against the support plate. The advantages of this utility model are mainly reflected in its ingenious design. This fixture can achieve batch clamping and positioning of workpieces through the carrier, and the workpieces will not shift or shake during the transfer process, maximizing accuracy and making it suitable for mass production.

Description

Technical Field

[0001] This utility model relates to the field of positioning device technology, and more particularly to a positioning fixture suitable for batch clamping and transferring of workpieces. Background Technology

[0002] Rectangular workpieces often require drilling and cutting during manufacturing. To facilitate workpiece processing, they need to be positioned. In existing technologies, the positioning of rectangular workpieces is generally achieved by setting up magnetic chucks on the worktable, fixing the workpiece on the chucks, and pressing the rectangular workpiece firmly with a pressure plate. Since the worktable is located below the processing equipment, there are often obstacles when grabbing, lifting, and moving workpieces, especially larger ones, making it difficult to move the workpiece on the worktable, resulting in difficult workpiece positioning and low efficiency.

[0003] For example, CN204413651U discloses a quick-positioning fixture for rectangular workpieces, including a base plate, a disc-shaped pressure head, a sliding shaft, a sliding sleeve, a stop block, and a positioning block. The stop block and the positioning block are fixedly installed on the upper side of one end of the base plate, and the sliding sleeve is fixedly installed on the upper side of the other end of the base plate via a mounting base and a pressure plate. The sliding shaft is slidably installed inside the sliding sleeve. A disc-shaped handle for pulling the sliding shaft is fixedly installed on the outer end of the sliding shaft, and the disc-shaped pressure head is fixedly installed on the inner end of the sliding shaft. A drive spring for driving the disc-shaped pressure head to clamp the workpiece is sleeved on the sliding shaft between the disc-shaped pressure head and the sliding sleeve. However, this fixture can only clamp and position one workpiece at a time, making it unsuitable for mass production and severely limiting its application. Furthermore, the clamping process for each workpiece is time-consuming and labor-intensive, resulting in high operator workload and significantly reduced work efficiency. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a positioning fixture suitable for batch clamping and transferring of workpieces.

[0005] The objective of this utility model is achieved through the following technical solution: A positioning fixture suitable for batch clamping and transferring of workpieces includes a base, on which a support plate for supporting a carrier is provided. Locking elements for securing workpieces are provided on both sides of the carrier. Support columns fixed to the support plate are provided at both ends of the outer side of the carrier. A vertical column is connected to the top of each support column via a quick-connect structure. A pressing plate is fixed to the top of each vertical column, and the lower surface of the pressing plate presses against the upper surface of the workpiece. A pressing assembly is also fixed to the base, located on both sides of the carrier, which can press the carrier against the support plate.

[0006] Preferably, the locking element includes at least a threaded hole formed on the carrier, the number of the threaded holes being equal to the number of the workpieces in the same row and corresponding one-to-one, and a locking bolt adapted to the threaded hole is provided in the threaded hole, one end of the locking bolt abutting against the corresponding workpiece.

[0007] Preferably, the pressing assembly includes at least a pressing cylinder fixed on the base, a support block fixed on the housing of the pressing cylinder, a transmission arm pivotally mounted on the support block, a pressing arm pivotally mounted on the cylinder shaft of the pressing cylinder, the other end of the pressing arm pressing against the end side of the carrier, and the other end of the transmission arm connected to the middle of the pressing arm.

[0008] Preferably, a positioning pin is fixed on the support plate, the positioning pin is frustum-shaped, and a positioning hole adapted to the positioning pin is provided on the carrier.

[0009] Preferably, a set of positioning plates is fixed on the bearing plate, and a positioning groove adapted to the positioning plates is opened on the carrier.

[0010] Preferably, the quick-connect structure includes an axial limiting component defined by the column and the support column to limit the axial movement of the column and a circumferential limiting component to limit the circumferential rotation of the column.

[0011] Preferably, the circumferential limiting component includes at least a semi-cylindrical block integrally formed on the support column, wherein a semi-circular groove is provided on the outer circumferential surface of the semi-cylindrical block; the support column is also provided with a limiting block integrally formed on it and in a semi-cylindrical shape, wherein the limiting block matches the outer contour of the groove, and a slot is provided between the limiting block and the semi-cylindrical block, wherein the outer contour of the slot matches the outer contour of the insertion end of the semi-cylindrical block.

[0012] Preferably, the axial limiting component includes a triangular groove disposed on the inner wall of the semi-cylindrical block, the triangular groove on the column and the triangular groove on the support column cooperate to form a rhombus groove, and a pin that matches the rhombus groove can be inserted into the rhombus groove to limit the axial movement of the column.

[0013] The beneficial effects of this utility model are mainly reflected in: 1. With its ingenious design, this fixture can achieve batch clamping and positioning of workpieces via a carrier, and the workpieces will not shift or shake during the transfer process, maximizing accuracy and making it suitable for mass production. Furthermore, this clamping and positioning method is simple, convenient, stable, and reliable, facilitating installation and disassembly, and greatly improving work efficiency.

[0014] 2. Simply tighten the locking bolt to lock the workpiece onto the carrier. The operation is simple, convenient, stable, and reliable, enabling axial and radial positioning of the workpiece. In addition, the pressure plate presses down on the workpiece to restrict its rotation. This design prevents the workpiece from shifting or moving during subsequent work, greatly improving the yield rate.

[0015] 3. The positioning pins and positioning plates can serve as guides during carrier assembly and also restrict the axial movement of the carrier, improving the ease of carrier assembly. In addition, the end of the pressing arm presses against the carrier to restrict the radial movement of the carrier. This limiting structure is simple, convenient, stable and reliable.

[0016] 4. When installing the pressing plate, insert the upright into the support column, and then insert the pin into the diamond-shaped groove formed by the two. This allows for quick installation and is simple and convenient, greatly improving work efficiency. Furthermore, for workpieces of different heights, there is no need to replace the entire fixture; only the upright needs to be replaced, greatly increasing the fixture's applicability and significantly reducing costs. Attached Figure Description

[0017] The technical solution of this utility model will be further described below with reference to the accompanying drawings: Figure 1 : A perspective view of a preferred embodiment of the present invention; Figure 2 : A perspective view of a preferred embodiment of the present invention, in which the support column, upright column, pressing plate, carrier, and workpiece are removed; Figure 3 : A cross-sectional view of the support column and the upright column in the preferred embodiment of this utility model. Detailed Implementation

[0018] The present invention will now be described in detail with reference to the specific embodiments shown in the accompanying drawings. However, these embodiments are not limited to the present invention, and any structural, methodological, or functional modifications made by those skilled in the art based on these embodiments are included within the protection scope of the present invention.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0021] like Figures 1 to 3 As shown, this utility model discloses a positioning fixture suitable for batch clamping and transferring of workpieces, including a base 1, on which a support plate 3 for supporting a carrier 2 is provided, and a carrier slot for accommodating the carrier is provided on the carrier 2, wherein two rows of workpieces 100 can be accommodated in the carrier slot.

[0022] In this preferred embodiment, the carrier 2 has locking members 4 on both sides for locking the workpiece 100 thereon. Each locking member 4 includes at least threaded holes on both sides of the carrier 2. The number of threaded holes is equal to the number of workpieces 100 in the same row, and they correspond one-to-one. Each threaded hole contains a locking bolt 41 that fits into it, with one end of the locking bolt 41 abutting against the corresponding workpiece 100. This ingenious design allows the workpiece 100 to be locked onto the carrier 2 simply by tightening the locking bolt 41. The operation is simple, convenient, stable, and reliable, achieving axial and radial positioning of the workpiece 100. Furthermore, the pressing plate 7 presses against the workpiece 109, restricting its rotation. This design prevents displacement or movement of the workpiece 100 during subsequent operations, greatly improving the yield rate.

[0023] A positioning pin 9, shaped like a frustum, is fixedly mounted on the support plate 3. The carrier 2 has a positioning hole that matches the positioning pin 9. The positioning pin 9 serves as a guide during assembly of the carrier 2 and also restricts the axial movement of the carrier 2, improving the ease of assembly. Additionally, a set of positioning plates 91 are fixedly mounted on the support plate 3, and the carrier 2 has positioning grooves that match the positioning plates 91. The positioning plates 91 further serve as a guide during assembly of the carrier 2, improving the ease of assembly.

[0024] A pressing assembly 8 is also fixedly mounted on the base 1. The pressing assembly 8 is located on both sides of the carrier 2 and can press the carrier 2 onto the support plate 3. Specifically, the pressing assembly 8 includes at least a pressing cylinder 81 fixedly mounted on the base 1. A support block 82 is fixedly mounted on the housing of the pressing cylinder 81. A transmission arm 83 is pivotally mounted on the support block 82. A pressing arm 84 is pivotally mounted on the cylinder shaft of the pressing cylinder 81. The other end of the pressing arm 84 presses against the end side of the carrier 2. The other end of the transmission arm 83 is connected to the middle part of the pressing arm 84. When the cylinder shaft of the pressing cylinder extends, it drives the middle part of the pressing arm 84 to rotate around the pivot point of the transmission arm 83, thereby pressing the other end of the pressing arm 84 onto the carrier 2, which can restrict the radial movement of the carrier 2. This limiting structure is simple, convenient, stable and reliable.

[0025] Both ends of the outer side of the carrier 2 are provided with support columns 5 fixed to the bearing plate 3. The top of the support column 5 is connected to the column 6 via a quick-connect structure. The top of the column 6 is fixed with a pressing plate 7. The lower surface of the pressing plate 7 presses against the upper surface of the workpiece 100. The pressing plate 7 can press against the workpiece 109, restricting the workpiece 100 from rotating. In conjunction with the locking bolt 41, it achieves precise positioning of the workpiece 100. The above design is ingenious. This fixture can achieve batch clamping and positioning of workpieces through the carrier, and the workpiece will not shift or shake during the transfer process, which maximizes accuracy and is suitable for mass production. In addition, this clamping and positioning method is simple, convenient, stable and reliable, easy to install and disassemble, and greatly improves work efficiency.

[0026] In this invention, the quick-connect structure includes an axial limiting component that restricts the axial movement of the column 6 and a circumferential limiting component that restricts the circumferential rotation of the column 6, defined by the column 6 and the support column 5. Specifically, the circumferential limiting component includes at least a semi-cylindrical block 61 integrally formed on the support column 5, with a semi-circular groove 62 on its outer circumferential surface; the support column 5 also has a limiting block 63 integrally formed on it and in a semi-cylindrical shape, the limiting block 63 matching the outer contour of the groove 62, and a slot 64 between the limiting block 63 and the semi-cylindrical block 61, the outer contour of the slot 64 matching the outer contour of the insertion end 611 of the semi-cylindrical block 61. The axial limiting component includes a triangular groove 51 disposed on the inner wall 612 of the semi-cylindrical block 61. The triangular groove 51 on the column 6 and the triangular groove 51 on the support column 5 cooperate with each other to form a rhombus groove. A pin 52 that matches the rhombus groove can be inserted into the rhombus groove to limit the axial movement of the column 6.

[0027] When installing the pressing plate, simply insert the upright into the support column, and then insert the pin into the diamond-shaped groove formed by the two. This allows for quick installation and is simple and convenient, greatly improving work efficiency. Furthermore, when dealing with workpieces of different heights, there is no need to replace the entire fixture; only the upright needs to be replaced. This significantly increases the fixture's applicability and substantially reduces costs.

[0028] The working process of this utility model is briefly described below: The workpiece 100 is neatly assembled onto the carrier 2. After assembly, the locking bolt 41 is tightened so that one end of the locking bolt abuts against the workpiece 100. The carrier 2 is placed on the support plate 3, and the positioning pin 9 is inserted into the positioning hole of the carrier 2. The positioning plate 91 is placed in the positioning groove of the carrier 2. After the above steps are completed, the column is inserted into the support column, and then the pin is inserted into the diamond-shaped groove formed by the two. This allows the pressing plate to press against the surface of the workpiece, ensuring that the workpiece does not shift or move during the transfer process, thus maximizing stability.

[0029] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0030] The detailed descriptions listed above are merely specific descriptions of feasible implementation methods of this utility model, and are not intended to limit the scope of protection of this utility model. All equivalent implementation methods or modifications made without departing from the spirit of this utility model should be included within the scope of protection of this utility model.

Claims

1. A positioning tool suitable for batch clamping and transferring of workpieces, comprising a base (1), characterized in that: The base (1) is provided with a support plate (3) for supporting the carrier (2), and the carrier (2) is provided with locking members (4) on both sides for locking the workpiece (100) thereon; the two ends of the outer side of the carrier (2) are provided with support columns (5) fixed on the support plate (3), and the top of the support column (5) is connected to a column (6) through a quick-connect structure. The top of the column (6) is fixed with a pressing plate (7), and the lower surface of the pressing plate (7) is pressed against the upper surface of the workpiece (100); the base (1) is also fixed with a pressing assembly (8), which is located on both sides of the carrier (2) and can press the carrier (2) onto the support plate (3).

2. The positioning tooling according to claim 1, wherein: The locking member (4) includes at least a threaded hole on the carrier (2), the number of which is equal to the number of the workpieces (100) in the same row and corresponds to each other, and a locking bolt (41) adapted to each of the threaded holes is provided in the threaded hole, one end of which abuts against the corresponding workpiece (100).

3. The positioning tooling according to claim 1, wherein: The pressing assembly (8) includes at least a pressing cylinder (81) fixed on the base (1). A support block (82) is fixed on the housing of the pressing cylinder (81). A transmission arm (83) is pivotally mounted on the support block (82). A pressing arm (84) is pivotally mounted on the cylinder shaft of the pressing cylinder (81). The other end of the pressing arm (84) presses against the end side of the carrier (2). The other end of the transmission arm (83) is connected to the middle of the pressing arm (84).

4. The positioning tooling according to claim 3, wherein: The bearing plate (3) is fixed with a positioning pin (9), which is frustum-shaped, and the carrier (2) is provided with a positioning hole that matches the positioning pin (9).

5. The positioning tooling according to claim 3, wherein: A set of positioning plates (91) are fixed on the bearing plate (3), and a positioning groove adapted to the positioning plate (91) is opened on the carrier (2).

6. The positioning tooling according to claim 1, wherein: The quick-connect structure includes an axial limiting component defined by the column (6) and the support column (5) to limit the axial movement of the column (6) and a circumferential limiting component to limit the circumferential rotation of the column (6).

7. The positioning tooling according to claim 6, wherein: The circumferential limiting component includes at least a semi-cylindrical block (61) integrally formed on the support column (5), and a groove (62) in the shape of a semi-circular ring is provided on the outer circumferential surface of the semi-cylindrical block (61); the support column (5) is also provided with a limiting block (63) integrally formed on it and in the shape of a semi-cylindrical block, the limiting block (63) matches the outer contour of the groove (62), and a slot (64) is provided between the limiting block (63) and the semi-cylindrical block (61), the outer contour of the slot (64) matches the outer contour of the insertion end (611) of the semi-cylindrical block (61).

8. The positioning tooling according to claim 7, wherein: The axial limiting component includes a triangular groove (51) disposed on the inner wall (612) of the semi-cylindrical block (61). The triangular groove (51) on the column (6) and the triangular groove (51) on the support column (5) cooperate with each other to form a rhombus groove. A pin (52) that matches the rhombus groove can be inserted into the rhombus groove to limit the axial movement of the column (6).

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