Multi-model product model changing positioning jig

Abstract

The utility model relates to product change positioning jig technical field, especially to a kind of multi-model product change positioning jig, including bottom plate, stand, fixed frame, clamping rod, extension rod, push rod and push block and other components;Bottom plate both sides are symmetrically provided with mounting hole, the rear side of bottom plate is fixedly connected with stand, the top of bottom plate is fixedly connected with fixed frame, horizontal groove is provided in fixed frame, two stands upper portion are rotatably connected with clamping rod, two clamping rods are fixedly connected with extension rod and are staggered and are drawn out horizontal groove, the front part of fixed frame is V-shaped structure, push rod is slidably connected in fixed frame, the rear part of two clamping rods is provided with sliding slot, the front end of push rod is fixedly connected with push block and is drawn into horizontal groove, two push blocks are slidably connected in corresponding sliding slot.The utility model is rotated when the threaded sleeve is driven by rotating lever, the meshing effect of threaded groove and connecting rod, the moving distance of push rod is accurately controlled, two push blocks of the front part of push rod are smoothly slid in the sliding slot of clamping rod.

Description

Technical Field

[0001] This utility model relates to the field of product changeover positioning fixtures, and in particular to a multi-model product changeover positioning fixture. Background Technology

[0002] A positioning fixture is a specialized piece of equipment used to precisely fix and determine the position of a workpiece during manufacturing, assembly, or inspection. Its core function is to ensure that the workpiece maintains an accurate and consistent spatial position relative to the cutting tool or measuring equipment during processing, thereby guaranteeing product dimensional accuracy and interchangeability.

[0003] Traditional fixtures suffer from cumbersome, time-consuming, and inefficient changeover processes when handling the production of multiple product models. Their core flaw lies in the lack of flexibility and modularity in their structural design; they are typically customized for a single product model, with positioning components that are fixed and non-adjustable or require complete disassembly and replacement. When switching to a different product model, operators must manually remove all the specialized parts of the current fixture, then install and precisely calibrate the new positioning components one by one. This entire process relies on manual operation and repeated adjustments, involving numerous steps and significant time consumption. This not only leads to frequent production line interruptions and a substantial increase in non-productive downtime, but also makes them susceptible to inaccurate positioning due to human error, affecting processing precision and product quality consistency.

[0004] Therefore, it is necessary to design a positioning fixture for changing between multiple product models to solve the above-mentioned technical problems. Utility Model Content

[0005] To overcome the shortcomings of traditional fixtures, such as simple structure, lack of flexibility, need to disassemble and replace all special positioning components during model changeover, reliance on repeated manual adjustments, cumbersome and time-consuming process, resulting in long downtime, low efficiency, and easy impact on positioning accuracy and product quality due to operational errors, this utility model provides a multi-model product changeover positioning fixture.

[0006] The technical solution of this utility model is: a multi-model product changeover positioning fixture, including a base plate, columns, a fixed frame, clamping rods, extension rods, push rods, push blocks, and an adjustment component. The base plate has symmetrical mounting holes on both sides. Columns are fixedly connected to both sides of the rear of the base plate. A fixed frame is fixedly connected to the top of the base plate. A horizontal groove is provided inside the fixed frame. Clamping rods are rotatably connected to the upper parts of the two columns. Extension rods are interlaced and fixedly connected to the two clamping rods through the horizontal grooves. The front of the fixed frame has a V-shaped structure. Push rods are slidably connected inside the fixed frame. Sliding grooves are provided at the rear of the two clamping rods. Push blocks are fixedly connected to the front ends of the push rods through the horizontal grooves. The two push blocks are slidably connected within their corresponding sliding grooves. An adjustment component is provided on the right side of the fixed frame.

[0007] Furthermore, the two clamping rods are symmetrically distributed.

[0008] Furthermore, the adjustment assembly includes a connecting rod, a rotating rod, a threaded sleeve, and an adapter. The connecting rod is fixedly connected to the right side of the push rod, and the rotating rod is rotatably connected to the right side of the fixed frame. The threaded sleeve is fixedly fitted at the front of the rotating rod, and a threaded groove is opened on the outside of the threaded sleeve. The connecting rod passes through the fixed frame and is threadedly connected to the threaded sleeve through the threaded groove. The adapter is fixedly connected to the connecting rod after it passes out of the fixed frame, and a hexagonal slot is opened at the front of the adapter.

[0009] Furthermore, it also includes anti-slip rubber blocks and rubber blocks. Anti-slip rubber blocks are fixedly connected between the two clamping rods and the rear of the corresponding extension rods, and rubber blocks are fixedly connected to both sides of the V-groove at the front of the fixing frame.

[0010] Furthermore, it also includes a positioning plate and positioning pins. The positioning plate is embedded and fixedly connected to the top of the base plate. The positioning plate has multiple locking holes in a rectangular array, and the six positioning pins are locked into six of the locking holes.

[0011] Furthermore, the positioning plate is located below the two clamping rods and the fixing frame.

[0012] The beneficial effects are as follows: 1. When the threaded sleeve is rotated by the rotating rod, the moving distance of the push rod is precisely controlled by the meshing action of the threaded groove and the connecting rod. The two push blocks at the front of the push rod slide smoothly in the groove of the clamping rod, driving the symmetrically distributed clamping rods to retract inward synchronously. This ensures the synchronicity of movement and the repeatability of position of the two clamping rods, avoiding the positioning deviation caused by the mechanism gap of traditional fixtures. During the entire clamping process, the retraction angle and final position of the clamping rods are precisely controlled, providing reliable positioning guarantee for different models of products.

[0013] 2. This utility model utilizes the flexible combination of multiple card holes arranged in a rectangular array on the positioning plate and six positioning pins. When switching between different product models, it is only necessary to reselect the corresponding card hole position and insert the positioning pin to quickly establish a new positioning reference. This eliminates the cumbersome steps of replacing the entire positioning module required by traditional fixtures and simplifies the model changeover process. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional structural diagram of the base plate, mounting holes, and columns of this utility model.

[0016] Figure 3 This is a three-dimensional structural diagram of the clamping rod, extension rod, and anti-slip rubber block components of this utility model.

[0017] Figure 4 This is a three-dimensional structural diagram of the push block, connecting rod, and rotating rod of this utility model.

[0018] Figure 5 This is a three-dimensional structural diagram of the base plate, positioning plate, and positioning pin of this utility model.

[0019] The parts and their numbers in the diagram are as follows: 1_Base plate, 2_Mounting hole, 3_Column, 4_Fixing frame, 5_Clamping rod, 6_Extension rod, 7_Anti-slip rubber block, 8_Rubber block, 9_Push rod, 10_Slide groove, 11_Push block, 12_Connecting rod, 13_Rotating rod, 14_Threaded sleeve, 15_Adapter, 16_Positioning plate, 17_Positioning pin. Detailed Implementation

[0020] Example: A positioning fixture for changing between multiple product models, such as... Figures 1-5 As shown, it includes a base plate 1, columns 3, a fixing frame 4, clamping rods 5, extension rods 6, push rods 9, push blocks 11, connecting rods 12, rotating rods 13, threaded sleeves 14, and adapters 15. The base plate 1 has symmetrical mounting holes 2 on both its left and right sides. Columns 3 are welded to the left and right sides of the rear of the base plate 1. A fixing frame 4 is welded to the top of the base plate 1. A horizontal groove is formed inside the fixing frame 4. Clamping rods 5 are rotatably connected to the upper parts of the two columns 3. The two clamping rods 5 are symmetrically distributed left and right. Extension rods 6 are welded to the two clamping rods 5 through the horizontal grooves, alternating vertically. The front of the fixing frame 4 has a V-shaped structure. The interior of the fixing frame 4... The sliding connection includes a push rod 9, and two clamping rods 5 each have a sliding groove 10 on their rear sides. Push blocks 11 are welded into the horizontal grooves at both ends of the front part of the push rod 9. The two push blocks 11 are slidably connected in the corresponding sliding grooves 10. A connecting rod 12 is welded to the bottom right side of the push rod 9. A rotating rod 13 is rotatably connected to the right side of the fixed frame 4. A threaded sleeve 14 is fixedly fitted on the front side of the rotating rod 13. A threaded groove is opened on the outer side of the threaded sleeve 14. The connecting rod 12 passes into the fixed frame 4 and is threadedly connected to the threaded sleeve 14 through the threaded groove. An adapter 15 is welded to the connecting rod 12 after it passes out of the fixed frame 4. A hexagonal slot is opened on the front side of the adapter 15.

[0021] like Figures 1-3 As shown, it also includes anti-slip rubber blocks 7 and rubber blocks 8. Anti-slip rubber blocks 7 are welded between the two clamping rods 5 and the rear side of the corresponding extension rods 6. Rubber blocks 8 are welded on both the upper and lower sides of the V-groove at the front of the fixing frame 4.

[0022] like Figure 1 and Figure 5 As shown, it also includes a positioning plate 16 and positioning pins 17. The positioning plate 16 is embedded and welded on the top side of the base plate 1. The positioning plate 16 has multiple locking holes in a rectangular array. The positioning plate 16 is located below the two clamping rods 5 and the fixing frame 4. All six positioning pins 17 are inserted into six of the locking holes.

[0023] When this device is needed, first, the entire fixture is securely installed on the corresponding work platform through the four mounting holes 2 on the left and right sides of the base plate 1. Then, according to the model and specifications of the product to be positioned, the six positioning pins 17 are selectively inserted into the corresponding slots on the positioning plate 16 to form a positioning reference suitable for the product. After completing the basic positioning, the product is placed on the top surface of the positioning plate 16, ensuring full contact with the positioning pins 17. At this time, the V-shaped structure on the front side of the fixing frame 4 can provide preliminary guidance and positioning for the product. Once the product is in place, clamping and positioning begins. In operation, insert the hex wrench into the hexagonal slot and rotate the rotating rod 13 clockwise. The rotating rod 13 drives the threaded sleeve 14 to rotate synchronously. Through the meshing of the threaded groove and the connecting rod 12, the push rod 9 is pushed to move backward along the fixed frame 4. Under the pushing action of the push block 11, the sliding of the push block 11 in the slide groove 10 converts the linear motion of the push rod 9 into the rotational motion of the clamping rod 5. At the same time, the slide groove 10 guides and constrains the movement trajectory of the push block 11. The two clamping rods 5 rotate inward and retract at the same time. At this time, the anti-slip rubber block 7 gradually approaches the two sides of the product. On the side, the rubber block 8 contacts the front and rear edges of the product, forming a multi-point flexible positioning. As the rotating rod 13 continues to rotate, the two clamping rods 5 continue to retract inward until the anti-slip rubber block 7 is completely in contact with the side of the product. During this process, the elastic properties of the anti-slip rubber block 7 can effectively adapt to the slight unevenness of the product surface, ensuring a uniform distribution of clamping force. At the same time, the cushioning effect of the rubber block 8 can prevent the product surface from being scratched due to contact with metal parts. When the clamping rod 5 reaches the predetermined clamping position, the rotating rod 13 stops rotating. At this time, the product is stably fixed. In the multi-point positioning system consisting of positioning pin 17, anti-slip rubber block 7, and rubber block 8, when a changeover operation is required after the current product processing or inspection process is completed, the clamping state can be released by rotating the rotating rod 13 counterclockwise. The rotation of the rotating rod 13 drives the push rod 9 to move forward through the threaded transmission, and the push block 11 slides in the opposite direction in the slide groove 10. The two clamping rods 5 rotate and unfold outward under their own weight or external assistance, and the anti-slip rubber block 7 detaches from the product surface. At this time, the processed product can be safely removed, and the changeover operation for the next model product can be carried out.

[0024] When switching between different product models, simply adjust the distribution of the positioning pins 17 in the slots of the positioning plate 16 to quickly establish a new positioning reference. Throughout the model changeover process, the threaded transmission mechanism of the adjustment component ensures the precise control of the opening and closing action of the clamping rod 5, while the flexible contact design of the anti-slip rubber block 7 and the rubber block 8 ensures good adaptability to products of different sizes.

Claims

1. A positioning fixture for changing between multiple product models, characterized in that, It includes a base plate (1), columns (3), a fixing frame (4), clamping rods (5), extension rods (6), push rods (9), push blocks (11), and adjustment components. The base plate (1) has symmetrical mounting holes (2) on both sides. The base plate (1) is fixedly connected to the columns (3) on both sides of the rear part. The base plate (1) is fixedly connected to the top of the fixing frame (4). The fixing frame (4) has a horizontal groove. The clamping rods (5) are rotatably connected to the upper part of the two columns (3). Both clamping rods (5) pass through the transverse groove and are fixedly connected to extension rods (6). The front of the fixed frame (4) is V-shaped. The fixed frame (4) is slidably connected to push rods (9). The rear of both clamping rods (5) is provided with sliding grooves (10). The front ends of the push rods (9) are inserted into the transverse grooves and are fixedly connected to push blocks (11). The two push blocks (11) are slidably connected in the corresponding sliding grooves (10). The right side of the fixed frame (4) is provided with an adjustment component.

2. The multi-model product changeover positioning fixture according to claim 1, characterized in that, The two clamping rods (5) are symmetrically distributed.

3. The multi-model product changeover positioning fixture according to claim 2, characterized in that, The adjustment assembly includes a connecting rod (12), a rotating rod (13), a threaded sleeve (14), and an adapter (15). The right side of the push rod (9) is fixedly connected to the connecting rod (12), and the right side of the fixed frame (4) is rotatably connected to the rotating rod (13). The front of the rotating rod (13) is fixedly fitted with a threaded sleeve (14), and the threaded sleeve (14) has a threaded groove on its outside. The connecting rod (12) passes through the fixed frame (4) and is threadedly connected to the threaded sleeve (14) through the threaded groove. The connecting rod (12) passes out of the fixed frame (4) and is fixedly connected to the adapter (15), and the front of the adapter (15) has a hexagonal slot.

4. A multi-model product changeover positioning fixture according to claim 3, characterized in that, It also includes anti-slip rubber blocks (7) and rubber blocks (8). The two clamping rods (5) are fixedly connected to the rear of the corresponding extension rods (6) with anti-slip rubber blocks (7). Rubber blocks (8) are fixedly connected to both sides of the V-groove at the front of the fixing frame (4).

5. A multi-model product changeover positioning fixture according to claim 4, characterized in that, It also includes a positioning plate (16) and positioning pins (17). The positioning plate (16) is embedded and fixedly connected to the top of the base plate (1). The positioning plate (16) has multiple slots in a rectangular array, and the six positioning pins (17) are inserted into six of the slots.

6. A multi-model product changeover positioning fixture according to claim 5, characterized in that, The positioning plate (16) is located below the two clamping rods (5) and the fixing frame (4).

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