Workpiece positioning tool
By designing a vertically set first and second positioning plate, and using the first and second positioning components to clamp the L-shaped workpiece, the problems of low accuracy and poor versatility in the traditional L-shaped workpiece positioning method are solved, achieving high precision, low cost, and multi-specification applicability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-29
- Publication Date
- 2026-04-03
AI Technical Summary
Traditional L-shaped workpiece positioning methods are difficult to accurately restrict their degrees of freedom, resulting in low machining accuracy and poor versatility. Frequent replacement of positioning fixtures increases production costs and time.
The workpiece positioning fixture, which includes a vertically arranged first positioning plate and a second positioning plate, is used to clamp the horizontal and vertical sections of the L-shaped workpiece. Combined with the detachable second positioning component, it facilitates the positioning and fixing of L-shaped workpieces of various sizes.
It improves the machining accuracy and versatility of L-shaped workpieces, reduces production costs, simplifies the operation process, and is suitable for L-shaped workpieces of various sizes.
Smart Images
Figure CN224074197U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of machining tooling technology, and in particular to a workpiece positioning tooling. Background Technology
[0002] L-shaped workpieces are widely used in many fields such as machining, automobile manufacturing, and electronic equipment production. For example, in automobile manufacturing, the machining accuracy of L-shaped body brackets, engine parts, and L-shaped robotic arms directly affects the overall quality and safety of the vehicle. In traditional technology, the positioning of L-shaped workpieces often uses simple fixtures or manual positioning methods. When using general-purpose fixtures, it is difficult to accurately restrict the degrees of freedom of the L-shaped workpiece in all directions, which can easily lead to displacement of the workpiece during machining, affecting machining accuracy. Moreover, traditional positioning fixtures are often designed for specific types or sizes of L-shaped workpieces, resulting in poor versatility. When the variety and specifications of L-shaped workpieces produced increase, frequent changes to positioning fixtures are required, increasing production costs and production cycles. Utility Model Content
[0003] Based on the above, the purpose of this utility model is to provide a workpiece positioning fixture that realizes the positioning of an L-shaped fixture. It has a simple structure, is easy to operate, and has good versatility.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A workpiece positioning fixture is used to assist in the positioning and clamping of an L-shaped workpiece. The workpiece positioning fixture includes a first positioning plate and a second positioning plate arranged vertically. The first positioning plate is used to place the horizontal section of the L-shaped workpiece, and the vertical section of the L-shaped workpiece can abut against the second positioning plate.
[0006] The first positioning plate is provided with a first positioning element, which is used to press the horizontal segment against the first positioning plate or to release the horizontal segment.
[0007] The second positioning plate is detachably connected to a second positioning member, which is used to hold the vertical segment and to press the vertical segment against the second positioning plate or to release the vertical segment.
[0008] As a preferred embodiment of a workpiece positioning fixture, the first positioning component includes a bracket and a first positioning push rod. The bracket is disposed on the first positioning plate, and the first positioning push rod is movably disposed on the bracket in a direction perpendicular to the first positioning plate.
[0009] As a preferred embodiment of a workpiece positioning fixture, the first positioning push rod is threadedly connected to the bracket.
[0010] As a preferred embodiment of a workpiece positioning fixture, the first positioning plate is provided with multiple sets of positioning stops along its length direction, and each set of positioning stops includes two positioning blocks arranged opposite to each other along the width direction of the first positioning plate.
[0011] As a preferred embodiment of a workpiece positioning fixture, the second positioning component includes an open clamp and a second positioning push rod. The open clamp is detachably connected to the second positioning plate and can wrap around the outer periphery of the vertical section. The second positioning push rod is movably disposed on the open clamp to abut or release the vertical section.
[0012] As a preferred embodiment of a workpiece positioning fixture, the second positioning plate is provided with connecting rods on opposite sides, and the two ends of the open clamp are respectively provided with overlapping grooves, and the two overlapping grooves can overlap the two connecting rods respectively.
[0013] As a preferred embodiment of a workpiece positioning fixture, the second positioning push rod is threadedly connected to the open clamp.
[0014] As a preferred embodiment of a workpiece positioning fixture, the second positioning plate is located on one side of the first positioning plate and adjacent to one end of the first positioning plate.
[0015] As a preferred embodiment of a workpiece positioning fixture, a reinforcing rib is provided between the first positioning plate and the second positioning plate.
[0016] As a preferred embodiment of a workpiece positioning fixture, a plurality of reinforcing crossbars are provided at intervals along the height direction on one side of the second positioning plate, and all of the plurality of reinforcing crossbars are connected to the reinforcing ribs.
[0017] The beneficial effects of this utility model are as follows:
[0018] This utility model provides a workpiece positioning fixture, which includes a first positioning plate, a second positioning plate, a first positioning element, and a second positioning element. The vertically arranged first and second positioning plates provide auxiliary shaping and support for the L-shaped workpiece placed on them. The first and second positioning elements clamp the horizontal and vertical sections of the L-shaped workpiece, thus fixing the L-shaped workpiece in place. This allows for internal or external welding of the L-shaped workpiece. Furthermore, the detachable connection of the second positioning element facilitates placement of the L-shaped workpiece, especially when it is a single-piece structure. This workpiece positioning fixture has a simple overall structure, is easy to use, and has low cost. It helps improve the processing accuracy of L-shaped workpieces, and the clamping of the first and second positioning elements achieves positioning of the L-shaped fixture. This workpiece positioning fixture is applicable to L-shaped fixtures of various sizes, exhibiting good versatility. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of the structure of an L-shaped workpiece placed on a workpiece positioning fixture from one perspective, according to an embodiment of the present invention.
[0021] Figure 2 This is a schematic diagram of the structure of an L-shaped workpiece placed on a workpiece positioning fixture from another perspective, according to an embodiment of the present invention.
[0022] Figure 3 This is a schematic diagram of the workpiece positioning fixture provided in one view according to an embodiment of the present invention;
[0023] Figure 4 This is a schematic diagram of the workpiece positioning fixture from another perspective provided in an embodiment of the present invention;
[0024] Figure 5 This is a schematic diagram of the workpiece positioning fixture from another perspective, provided in an embodiment of the present invention;
[0025] Figure 6 This is a structural schematic diagram of the second positioning member provided in an embodiment of the present utility model.
[0026] In the picture:
[0027] 100. L-shaped workpiece; 101. Horizontal section; 102. Vertical section;
[0028] 1. First positioning plate; 2. Second positioning plate; 3. First positioning component; 31. Bracket; 32. First positioning top rod; 321. First threaded rod; 322. First handle; 4. Second positioning component; 41. Open clamp; 410. Overlap groove; 42. Second positioning top rod; 421. Second threaded rod; 422. Second handle; 5. Positioning stop; 6. Reinforcing rib; 7. Reinforcing crossbar; 8. Overlap rod. Detailed Implementation
[0029] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.
[0030] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between 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.
[0031] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0032] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used solely for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. Furthermore, the terms "first" and "second" are merely used for descriptive distinction and have no special meaning.
[0033] like Figures 1 to 6As shown, this embodiment provides a workpiece positioning fixture for assisting in the positioning and clamping of an L-shaped workpiece 100. The L-shaped workpiece 100 includes a vertically connected horizontal segment 101 and a vertical segment 102, or the horizontal segment 101 and vertical segment 102 are separate components to be connected. The workpiece positioning fixture includes a vertically arranged first positioning plate 1 and a second positioning plate 2. The first positioning plate 1 is used to place the horizontal segment 101 of the L-shaped workpiece 100, and the vertical segment 102 of the L-shaped workpiece 100 can abut against the second positioning plate 2. The vertically arranged first positioning plate 1 and... The second positioning plate 2 provides support and shaping for the L-shaped workpiece 100, ensuring that the horizontal segment 101 and vertical segment 102 placed on it remain perpendicular, which helps improve the accuracy of the workpiece after welding. The first positioning plate 1 is provided with a first positioning element 3, which is used to press the horizontal segment 101 against the first positioning plate 1 or release the horizontal segment 101. The second positioning plate 2 is detachably connected with a second positioning element 4, which is used to hold the vertical segment 102 and press it against the second positioning plate 2 or release the vertical segment 102. By pressing the horizontal segment 101 and vertical segment 102 of the L-shaped workpiece 100 against the first positioning element 3 and the second positioning element 4, the L-shaped workpiece 100 is fixed in the workpiece positioning fixture, allowing for internal or external welding. Simultaneously, the detachable connection of the second positioning element 4 facilitates placement of the L-shaped workpiece 100 as a single unit on the workpiece positioning fixture. The workpiece positioning fixture has a simple overall structure, is easy to use, and has a low cost. It is beneficial to improve the machining accuracy of the L-shaped workpiece 100. The positioning of the L-shaped fixture 100 is achieved by the clamping of the first positioning element 3 and the second positioning element 4. The workpiece positioning fixture can be applied to L-shaped fixtures 100 of various sizes and has good versatility.
[0034] In this embodiment, the second positioning plate 2 is located on one side of the first positioning plate 1 and adjacent to one end of the first positioning plate 1. Of course, in other embodiments, the second positioning plate 2 may also be located at the end of the first positioning plate 1, depending on actual needs.
[0035] Preferably, a reinforcing rib 6 is provided between the first positioning plate 1 and the second positioning plate 2. The reinforcing rib 6 can effectively increase the stability of the second positioning plate 2 to ensure the stability of the L-shaped workpiece 100 during processing.
[0036] More preferably, a plurality of reinforcing crossbars 7 are spaced apart along the height direction on one side of the second positioning plate 2, and each of the reinforcing crossbars 7 is connected to a reinforcing rib 6. This further enhances the stability and reliability of the workpiece positioning fixture. For example, along the height direction of the second positioning plate 2, the length of the plurality of reinforcing crossbars 7 gradually decreases, that is, each reinforcing crossbar 7 forms a triangle with the first positioning plate 1 and the reinforcing rib 6, resulting in better structural stability.
[0037] Furthermore, such as Figure 1 and Figure 3 As shown, the first positioning component 3 includes a bracket 31 and a first positioning push rod 32. The bracket 31 is mounted on the first positioning plate 1, and the first positioning push rod 32 is movably mounted on the bracket 31 in a direction perpendicular to the first positioning plate 1. After the horizontal segment 101 is placed on the first positioning plate 1, the first positioning push rod 32 is moved to press the horizontal segment 101. After processing is completed, the first positioning push rod 32 is moved away from the horizontal segment 101, and the L-shaped workpiece 100 is removed.
[0038] For example, the first positioning rod 32 is threaded to the bracket 31. By screwing the first positioning rod 32, the horizontal section 101 can be tightened and loosened. The operation is convenient and quick, and the structural strength is good.
[0039] Preferably, the first positioning rod 32 includes a first threaded rod 321 and a first handle 322. The first threaded rod 321 is threadedly connected to the bracket 31, and the first handle 322 facilitates the operator to screw the first positioning rod 32.
[0040] Specifically, the first positioning plate 1 has multiple sets of positioning stops along its length, each set including two positioning blocks 5 arranged opposite each other along the width of the first positioning plate 1. These multiple sets of positioning stops limit the movement of the horizontal segment 101, wherein the width of the horizontal segment 101 placed on the first positioning plate 1 is less than or equal to the distance between the two positioning blocks 5 in each set. When the horizontal segment 101 is placed on the first positioning plate 1, it can abut against multiple positioning blocks 5 located on the same side, or abut against multiple sets of positioning stops on both sides, improving the stability of the horizontal segment 101.
[0041] Furthermore, such as Figure 1 and Figure 6 As shown, the second positioning component 4 includes an open clamp 41 and a second positioning push rod 42. The open clamp 41 is detachably connected to the second positioning plate 2 and can wrap around the outer periphery of the vertical section 102. The second positioning push rod 42 is movably mounted on the open clamp 41 to tighten or loosen the vertical section 102. After the vertical section 102 is pressed against the second positioning plate 2, the open clamp 41 is installed to provide a limiting function for the vertical section 102. Then, the second positioning push rod 42 is moved to tighten the vertical section 102, so that the position of the vertical section 102 is fixed, which is convenient for processing. After processing, the second positioning push rod 42 is moved to loosen the vertical section 102, and the open clamp 41 is removed, so that the L-shaped workpiece 100 can be taken away.
[0042] Specifically, such as Figure 3 and Figure 4As shown, overlapping rods 8 are respectively provided on opposite sides of the second positioning plate 2, and overlapping grooves 410 are respectively provided at both ends of the open clamp 41. The two overlapping grooves 410 can overlap the two overlapping rods 8 respectively. This facilitates assembly and disassembly, saving assembly and disassembly time. Of course, in other embodiments, detachability can also be achieved in other ways, such as by bolting the two ends of the open clamp 41 to achieve a detachable connection with the second positioning plate 2. The open clamp 41 is U-shaped or arc-shaped, specifically matching the shape of the vertical section 102.
[0043] More specifically, such as Figure 6 As shown, the second positioning rod 42 is threaded to the open clamp 41. By screwing the second positioning rod 42, the vertical section 102 can be tightened or loosened, which is convenient and quick.
[0044] In this embodiment, the second positioning rod 42 includes a second threaded rod 421 and a second handle 422. The second threaded rod 421 is threadedly connected to the open clamp 41, and the second handle 422 facilitates the operator to screw the second positioning rod 42.
[0045] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.
Claims
1. A workpiece positioning tool for assisting in the positioning and clamping of L-shaped workpieces, characterised in that, The workpiece positioning tool comprises a first positioning plate and a second positioning plate arranged vertically, the first positioning plate is used for placing a horizontal section of the L-shaped workpiece, and a vertical section of the L-shaped workpiece can abut against the second positioning plate; The first positioning plate is provided with a first positioning member, the first positioning member is used for tightly pressing the horizontal section against the first positioning plate or loosening the horizontal section; The second positioning plate is detachably connected with a second positioning member, the second positioning member is used for holding the vertical section and tightly pressing the vertical section against the second positioning plate or loosening the vertical section.
2. The workpiece positioning fixture of claim 1, wherein, The first positioning member comprises a support and a first positioning top rod, the support is arranged on the first positioning plate, and the first positioning top rod is movably arranged on the support in a direction perpendicular to the first positioning plate.
3. The workpiece positioning fixture of claim 2, wherein, The first positioning top rod is screw-connected to the support.
4. The workpiece positioning fixture of claim 1, wherein, The first positioning plate is provided with a plurality of groups of positioning stoppers along a length direction thereof, each group of the positioning stoppers comprises two positioning stop blocks oppositely arranged along a width direction of the first positioning plate.
5. The workpiece positioning fixture of claim 1, wherein, The second positioning member comprises an open clamp and a second positioning top rod, the open clamp is detachably connected to the second positioning plate and can embrace an outer periphery of the vertical section, and the second positioning top rod is movably arranged on the open clamp to tightly press or loosen the vertical section.
6. The workpiece positioning fixture of claim 5, wherein, Opposite sides of the second positioning plate are respectively provided with clamping rods, both ends of the open clamp are respectively provided with clamping grooves, and the two clamping grooves can be clamped on the two clamping rods respectively.
7. The workpiece positioning fixture of claim 5, wherein, The second positioning top rod is screw-connected to the open clamp.
8. The workpiece positioning fixture of claim 1, wherein, The second positioning plate is located on one side of the first positioning plate and close to one end of the first positioning plate.
9. The workpiece positioning fixture of claim 1, wherein, The first positioning plate and the second positioning plate are provided with a reinforcing rib.
10. The workpiece positioning fixture of claim 9, wherein, A plurality of reinforcing cross rods are arranged on one side of the second positioning plate along a height direction thereof, and the reinforcing cross rods are connected with the reinforcing rib.