Positioning fixture for machining the housing of an industrial robot reducer

Abstract

The utility model discloses a machining positioning fixture fro industrial robot reducer shell, include: base, the surface of base is provided with sliding slot, the both sides of base surface are provided with the recess, positioning assembly, positioning assembly one side with the inner wall swing joint of sliding slot, positioning assembly is used to carry out positioning clamping in the machining process of industrial robot reducer shell, the utility model relates to fixture tooling technical field. This machining positioning fixture fro industrial robot reducer shell utilizes the setting of preparatory assembly, can provide a flexible pre -pressing positioning mechanism when the reducer shell is just placed in the fixture inside. Among them, the spring exerts the elastic force under the initial state, makes the contact board one side to stick the sliding block fast, prevents the workpiece from sliding or shaking before completing final locking, and the damper can further buffer the impact that fast clamping brings, prolongs the life of fixture.

Description

Technical Field

[0001] This utility model relates to the field of fixture and tooling technology, specifically to a machining and positioning fixture and tooling for the housing of an industrial robot reducer. Background Technology

[0002] With the widespread application of industrial robots in manufacturing, assembly, and logistics, the structural precision and assembly quality of their core component—the reducer—directly affect the response speed and operational accuracy of the robot system. The reducer housing, as the main structural component that supports and connects gears, bearings, and transmission elements, requires extremely high processing quality.

[0003] Patent CN221834337U discloses a composite fixture for industrial robot processing. Addressing the problem that existing composite fixtures for industrial robot processing require manual adjustment, which is time-consuming and labor-intensive, impacting production efficiency, the patent proposes the following solution: It includes a housing, with an outer shell fixedly mounted at the bottom of the housing, and a placement box fixedly mounted at the bottom of the outer shell. Fixed rods are fixedly mounted on both sides of the outer shell, and a common fixed plate is fixedly mounted inside the two fixed rods. First fixed shells are slidably mounted on both sides of the bottom of the fixed plate, and first placement boxes are fixedly mounted inside the two first fixed shells. First springs are fixedly mounted inside the two first placement boxes, and first fixing blocks are fixedly mounted on one side of each of the two first springs. This patent allows for adjustment according to different sizes, improving production efficiency.

[0004] As described above, in actual production, since the reducer housing is mostly an irregular casting or aluminum alloy structure with a complex shape and surfaces including arcs, bevels, and multiple holes, traditional fixtures struggle to achieve fast, accurate, and stable positioning and clamping, easily leading to slippage, deformation, or insecure clamping. Especially during multi-model switching production processes, traditional rigid fixtures exhibit poor adaptability and complex adjustments, severely hindering automated processing efficiency. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a machining and positioning fixture for the housing of an industrial robot reducer, which solves the problem that traditional rigid fixtures have poor adaptability and are complex to adjust during multi-model switching production, thus severely restricting the efficiency of automated machining.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a machining and positioning fixture for the housing of an industrial robot reducer, comprising:

[0007] The base has a sliding groove on its surface and empty grooves on both sides of its surface.

[0008] A positioning component, one side of which is movably connected to the inner wall of the sliding groove, is used for positioning and clamping the housing of the industrial robot reducer during the processing.

[0009] A pre-clamping assembly, one side of which is fixedly connected to one side of the base surface, is used for pre-clamping the housing of the industrial robot reducer.

[0010] Preferably, the positioning component includes a sliding block that is slidably connected to the inner wall of the sliding groove, a support plate is fixedly connected to the top of the sliding block, and a mold block is fixedly connected to the top of the support plate.

[0011] Preferably, a baffle plate is fixedly connected to one side of the surface of the mold block, and a connector sleeve is fixedly connected to both sides of the surface of the mold block, with a positioning post movably connected to the inner wall of the connector sleeve.

[0012] Preferably, mounting blocks are fixedly connected to both sides of the top of the base, and mounting slots are formed on the surface of the mounting blocks.

[0013] Preferably, the preparatory component includes a side plate fixedly connected to the surface of the base, with springs fixedly connected to both sides of the side plate, a dovetail plate fixedly connected to one end of the spring via a connecting block, and a dovetail groove block fixedly connected to one side of the dovetail plate.

[0014] Preferably, a contact plate is fixedly connected to one side of the dovetail groove block, and a handle is provided on one side of the contact plate.

[0015] This utility model provides a machining and positioning fixture for the housing of an industrial robot reducer. Compared with the prior art, it has the following advantages:

[0016] 1. This machining and positioning fixture for industrial robot reducer housings utilizes pre-installed components to provide a flexible pre-compression positioning mechanism when the reducer housing is first placed inside the fixture. Specifically, a spring applies elastic force in the initial state, causing the contact plate to quickly engage with the sliding block, preventing the workpiece from sliding or wobbling before final locking. A damper further buffers the impact of rapid clamping, extending the fixture's lifespan. The contact plate, connected by a dovetail structure, effectively prevents detachment and allows for quick separation from the sliding groove when not in use, providing excellent adjustability. This structure enables the fixture to achieve approximate positioning and a certain degree of stability in the initial clamping stage, providing a better foundation for the subsequent locking of rigid positioning components. Overall, it improves the fixture's flexibility and workpiece clamping efficiency, making it particularly suitable for small-batch, multi-model switching production scenarios.

[0017] 2. This machining and positioning fixture for industrial robot reducer housings utilizes a positioning component. A sliding block can move linearly along a sliding groove, and a mold block is fixedly connected to it to conform to the key positioning surfaces of the reducer housing. The mold block can be selected according to specific requirements to meet the needs of the current reducer housing being machined. The specially designed guard plate has a semi-circular structure with a built-in soft pad, effectively preventing damage to the housing surface during clamping while enhancing friction and preventing slippage. Magnetic positioning posts inside the connector sleeve automatically adhere to the iron mounting block, forming a multi-point clamping and magnetically stable locking mechanism, significantly improving fixture rigidity and workpiece machining stability. Compared to traditional purely mechanical locking methods, this structure offers advantages such as high clamping efficiency, high repeatability, and ease of operation. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0019] Figure 2 This utility model Figure 1 A magnified view of a section at point A in the middle;

[0020] Figure 3 This is a horizontal side view of the present invention;

[0021] Figure 4 This is a schematic diagram of the preparatory component structure of this utility model.

[0022] In the diagram: 1. Base; 2. Sliding groove; 3. Empty groove; 4. Positioning component; 41. Sliding block; 42. Support plate; 43. Mold block; 44. Guard plate; 45. Connecting sleeve; 46. Positioning post; 47. Mounting block; 48. Mounting groove; 5. Preparatory component; 51. Side plate; 52. Spring; 53. Dovetail plate; 54. Dovetail groove block; 55. Contact plate; 56. Handle. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-4 This utility model provides two technical solutions:

[0025] Example 1: A machining and positioning fixture for the housing of an industrial robot reducer, comprising:

[0026] The base 1 has a sliding groove 2 on its surface and hollow grooves 3 on both sides of its surface. One side of the contact plate 55 passes through the hollow groove 3 and extends into the interior of the hollow groove 3.

[0027] Positioning component 4, one side of which is movably connected to the inner wall of sliding groove 2, is used for positioning and clamping the housing of industrial robot reducer during processing.

[0028] The pre-clamping component 5 is fixedly connected to one side of the base 1 surface. It is used for pre-clamping the industrial robot reducer housing. This component provides a flexible pre-clamping positioning mechanism when the reducer housing is first placed inside the fixture. Spring 52 applies elastic force initially, causing the contact plate 55 to quickly engage with the sliding block 41, preventing the workpiece from sliding or wobbling before final locking. The damper further buffers the impact of rapid clamping, extending the fixture's lifespan. The dovetail-connected contact plate 55 effectively prevents detachment and allows for quick separation from the sliding groove 2 when not in use, providing good adjustability. This structure allows the fixture to achieve approximate positioning and stability in the initial clamping stage, providing a better foundation for the subsequent locking of the rigid positioning component 4. Overall, it improves the fixture's flexibility and workpiece clamping efficiency, making it particularly suitable for small-batch, multi-model switching production scenarios.

[0029] Example 2 differs from Example 1 primarily in that: for the machining and positioning fixture for the industrial robot reducer housing, the positioning component 4 includes a sliding block 41 slidably connected to the inner wall of the sliding groove 2. A support plate 42 is fixedly connected to the top of the sliding block 41, and a mold block 43 is fixedly connected to the top of the support plate 42. A guard plate 44 is fixedly connected to one side of the surface of the mold block 43. The guard plate 44 is semi-arc-shaped and can accommodate a positioning post 46. A clamping pad is provided inside the guard plate 44. Connecting sleeves 45 are fixedly connected to both sides of the surface of the mold block 43. The positioning post 46 is movably connected to the inner wall of the connecting sleeve 45. The positioning post 46 is made of magnetic material. Mounting blocks 47 are fixedly connected to both sides of the top of the base 1. Mounting blocks 47 have mounting grooves 48 on their surfaces. Multiple mounting blocks 47 are evenly distributed. The mounting blocks 47 themselves are made of iron, which facilitates the entry of the positioning post 46 and makes operation convenient. The preparatory component 5 includes a side plate 51 fixedly connected to the surface of the base 1. Springs 52 are fixedly connected to both sides of the side plate 51. A damper is installed inside the spring 52, and a dovetail plate 53 is fixedly connected to one end of the spring 52 via a connecting block. A dovetail groove block 54 is fixedly connected to one side of the dovetail plate 53, and a contact plate 55 is fixedly connected to one side of the dovetail groove block 54. The length of the contact plate 55 is greater than the length of the dovetail groove block 54. When one side of the dovetail groove block 54 is in contact with the dovetail plate 53, the horizontal projection of the contact plate 55 can coincide with the horizontal projection of the sliding block 41, which means that the sliding block 41 can be pushed to move. A handle 56 is provided on one side of the contact plate 55. With the setting of the positioning component 4, the sliding block 41 can move linearly along the sliding groove 2. The mold block 43 is fixedly connected to it and is used to fit the key positioning surface of the reducer housing. The mold block 43 can be specifically selected according to actual requirements to meet the current processing of the reducer housing. The specially designed guard plate 44 has a semi-arc structure and a built-in soft pad layer, which can effectively prevent damage to the housing surface during clamping, while enhancing friction and preventing the housing from sliding. The magnetic positioning pins inside the connector sleeve 45 can automatically adhere to the iron mounting block, forming a multi-point clamping and magnetically stable locking mechanism, which greatly improves the rigidity of the fixture and the machining stability of the workpiece. Compared with the traditional purely mechanical locking method, this structure has the advantages of high clamping efficiency, high repeatability, and simple operation.

[0030] If the vibration is too great during the processing, the positioning post 46 can be replaced with a screw rod, and the mounting block 47 and mounting groove 48 can be replaced with the corresponding nuts. Each set of mold blocks 43 corresponds to an industrial robot reducer housing.

[0031] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0032] During operation, select appropriate mold blocks 43 and surrounding support plates 42, etc., according to the actual needs of the reducer housing. Place the industrial robot reducer housing between two mold blocks 43, push the sliding block 41 into the sliding groove 2, and push the contact plate 55 to compress the spring 52. After the sliding block 41 enters the sliding groove 2, push the handle 56 laterally. The contact plate 55 and the dovetail block 54 slide on the surface of the dovetail plate 53. Insert the contact plate 55 through the slot 3 into the sliding groove 2. The contact plate 55 moves to one side of the sliding block 41 and is released. The handle 56 and spring 52 push the dovetail groove block 54 and contact plate 55, which in turn pushes the sliding block 41 to the middle position of the base 1. The two symmetrical mold blocks 43 are then squeezed, thereby stably pre-clamping the industrial robot reducer housing. Then, according to the actual working position, the positioning post 46 placed in the guard plate 44 is removed, and the positioning post 46 is moved down along the connector sleeve 45 and inserted into the mounting groove 48 of the mounting block 47. The device is stably fixed. Subsequently, the industrial robot reducer housing is processed. After the processing is completed, the device is restored.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art 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 appended claims and their equivalents.

Claims

1. A machining and positioning fixture for the housing of an industrial robot reducer, characterized in that, include: The base (1) has a sliding groove (2) on its surface and empty grooves (3) on both sides of its surface. Positioning component (4), one side of which is movably connected to the inner wall of sliding groove (2), the positioning component (4) is used for positioning and clamping during the processing of the industrial robot reducer housing; The preparatory component (5) is fixedly connected to one side of the surface of the base (1) on one side. The preparatory component (5) is used for pre-clamping the housing of the industrial robot reducer.

2. The machining and positioning fixture for the housing of an industrial robot reducer as described in claim 1, characterized in that: The positioning component (4) includes a sliding block (41) that is slidably connected to the inner wall of the sliding groove (2). A support plate (42) is fixedly connected to the top of the sliding block (41), and a mold block (43) is fixedly connected to the top of the support plate (42).

3. The machining and positioning fixture for the housing of an industrial robot reducer as described in claim 2, characterized in that: A baffle plate (44) is fixedly connected to one side of the surface of the mold block (43), and a connector sleeve (45) is fixedly connected to both sides of the surface of the mold block (43). A positioning post (46) is movably connected to the inner wall of the connector sleeve (45).

4. The machining and positioning fixture for the housing of an industrial robot reducer as described in claim 1, characterized in that: The base (1) has mounting blocks (47) fixedly connected to both sides of its top, and mounting slots (48) are provided on the surface of the mounting blocks (47).

5. The machining and positioning fixture for the housing of an industrial robot reducer as described in claim 1, characterized in that: The preparatory component (5) includes a side plate (51) fixedly connected to the surface of the base (1). Springs (52) are fixedly connected to both sides of the side plate (51). One end of the spring (52) is fixedly connected to a dovetail plate (53) through a connecting block. A dovetail groove block (54) is fixedly connected to one side of the dovetail plate (53).

6. The machining and positioning fixture for the housing of an industrial robot reducer according to claim 5, characterized in that: A contact plate (55) is fixedly connected to one side of the dovetail groove block (54), and a handle (56) is provided on one side of the contact plate (55).

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