Limit processing structure

Abstract

The utility model relates to the field of machining technology, and relates to a position-limiting processing structure. The positioning mechanism of the utility model positions the hole position of a workpiece, the pressing mechanism presses the main body of the workpiece on a substrate, a plurality of clamping components are arranged corresponding to each protruding end of the workpiece, and the pressing component presses the protruding end of the workpiece against the position-limiting block, thereby completing multi-point positioning of the workpiece, making the workpiece more stably arranged on the substrate, increasing the stability of the positioning fixture, facilitating turning of each end face of the workpiece, and positioning the main body and multiple protruding ends of the heterogeneous workpiece at one time, so that multiple surfaces of the workpiece can be processed, and production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of machining, in particular to a position limiting machining structure. Background Art

[0002] A fixture is a device used in the mechanical manufacturing process to secure the workpiece in the correct position for construction or testing. Broadly speaking, any device used to quickly, conveniently, and safely install special-shaped panels in any process can be called a fixture.

[0003] When machining special-shaped sheet metal parts on machine tools, the parts must be positioned, mounted, and clamped before machining to ensure that their surfaces meet the technical requirements for dimensions, geometry, and relative positional accuracy with other surfaces as specified in the drawings. For small batches of special-shaped parts, there are generally no dedicated fixtures available, requiring only general-purpose fixtures for clamping and positioning. These often inaccurate positioning compromises machining quality and assembly accuracy. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a position limiting processing structure which can perform multi-point positioning on a workpiece, increase the stability of a positioning fixture, and improve production efficiency.

[0005] In order to solve the above technical problems, the technical solutions adopted by the present invention are as follows:

[0006] A position limiting processing structure, comprising:

[0007] A substrate, wherein a positioning station is provided on the substrate;

[0008] A positioning mechanism is provided on the positioning station, and is used to position the hole of the workpiece;

[0009] A clamping mechanism is provided on the substrate, the clamping mechanism comprising a plurality of clamping assemblies, the clamping assemblies being provided in one-to-one correspondence with the protruding ends of the workpieces, and the clamping assemblies being used to clamp and limit the protruding ends of the workpieces;

[0010] A material pressing mechanism is provided on the substrate, and is used to press the main body of the workpiece onto the substrate;

[0011] Wherein, the clamping assembly includes a clamping frame, which is provided with a clamping groove matching the protruding end of the workpiece, a limiting block is provided on one side of the clamping groove, and a tightening component is provided on the other side of the clamping groove, and the tightening component is used to press the protruding end of the workpiece against the limiting block for positioning.

[0012] In one embodiment of the present invention, the positioning mechanism includes a positioning jig that matches the hole position of the workpiece, a limiting hole is provided on the positioning jig, a positioning pin is provided on the positioning station, the positioning pin is passed through the limiting hole, the positioning jig is connected to the base plate by screws, an arc-shaped guide surface is provided on the edge of the positioning jig, and the outer wall of the positioning jig is connected to the inner side surface of the hole position of the workpiece.

[0013] In one embodiment of the present invention, the pressing mechanism includes at least one pressing component, the pressing component includes a pressing cylinder, the pressing cylinder is arranged on the substrate, the pressing cylinder is driven and connected to the pressing plate, and the pressing cylinder drives the pressing plate to abut against the edge of the workpiece to press the workpiece onto the substrate.

[0014] In one embodiment of the present invention, a pressing block is provided on the pressing rod, a pressing slope is provided on the pressing block, a pressing surface is provided on the edge of the workpiece, and the pressing cylinder drives the pressing slope on the pressing block to connect with the pressing surface on the workpiece.

[0015] In one embodiment of the present invention, the clamping component includes a fixed block and a movable block, the fixed block is arranged on the clamping frame, the movable block is slidably arranged on the clamping frame, a guide block is arranged between the fixed block and the movable block, the guide block is connected to the clamping frame through an adjusting bolt, and the movable block is pushed toward the protruding end of the workpiece by rotating the adjusting bolt.

[0016] In one embodiment of the present invention, a first inclined surface is provided on both the fixed block and the movable block, and a second inclined surface is provided on both sides of the guide block, so that the guide block has a trapezoidal structure, and the first inclined surface is connected to the second inclined surface. By rotating the adjusting bolt, the second inclined surface slides along the first inclined surface to drive the movable block to move.

[0017] In one embodiment of the present invention, a slide groove is provided on the clamping frame, a slider is slidably provided on the slide groove, the movable block is provided on the slider, a sliding spring is provided on the slider, and the free end of the sliding spring is connected to the side wall of the slide groove.

[0018] In one embodiment of the present invention, a guide groove is provided on the clamping frame, a guide rail is provided on the guide groove, a guide block is slidably provided on the guide rail, a fixing member is provided on the guide block, and the fixing member is connected to the protruding end of the workpiece so that the protruding end of the workpiece reciprocates along the guide rail.

[0019] In one embodiment of the present invention, the fixing member is a vacuum suction cup or a pin, and a positioning spring is provided on the guide block, and the free end of the positioning spring is connected to the bottom surface of the guide groove.

[0020] In one embodiment of the present invention, a guide groove is provided on the limit block, a spring plunger is provided in the guide groove, a positioning hole matching the spring plunger is provided on the protruding end of the workpiece, and the protruding end of the spring plunger is inserted into the positioning hole.

[0021] Beneficial effects of the utility model:

[0022] The positioning mechanism of the utility model positions the hole position of the workpiece, the pressing mechanism presses the main body of the workpiece on the base plate, multiple clamping components are arranged corresponding to the respective protruding ends of the workpiece, and the pressing component presses the protruding ends of the workpiece against the limit block to complete the multi-point positioning of the workpiece, so that the workpiece is more stably arranged on the base plate, the stability of the positioning fixture is increased, and the turning processing of each end face of the workpiece is convenient. The main body and multiple protruding ends of the heterogeneous workpiece can be positioned at one time, so that multiple surfaces of the workpiece can be processed, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of a position limiting processing structure of the utility model.

[0024] Figure 2 It is a schematic diagram of the clamping assembly of the present utility model.

[0025] Explanation of the numbers in the figure: 1. Base plate; 2. Workpiece; 21. Main body; 22. Hole position of workpiece; 23. Protruding end of workpiece; 3. Positioning fixture; 31. Limiting hole; 32. Screw; 4. Pressing mechanism; 41. Pressing cylinder; 42. Pressing plate; 43. Pressing block; 44. Pressing inclined surface; 5. Clamping assembly; 51. Clamping frame; 52. Limiting block; 53. Guide groove; 54. Spring plunger; 55. Protruding end of spring plunger; 56. Positioning hole; 6. Clamping component; 61. Fixed block; 62. Movable block; 63. Guide block; 64. Adjusting bolt; 65. First inclined surface; 66. Second inclined surface; 67. Slider; 68. Sliding spring; 7. Guide groove; 71. Guide rail; 72. Guide block; 73. Fixing part; 74. Positioning spring. DETAILED DESCRIPTION

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it. However, the embodiments are not intended to limit the present invention.

[0027] Reference Figure 1-2 As shown, a position limiting processing structure includes:

[0028] A substrate 1, wherein a positioning station is provided on the substrate 1;

[0029] A positioning mechanism is provided on the positioning station, and is used to position the hole 22 of the workpiece;

[0030] A clamping mechanism is provided on the substrate 1, and the clamping mechanism includes a plurality of clamping components 5, wherein the clamping components 5 are provided in a one-to-one correspondence with the protruding ends 23 of the workpiece, and the clamping components 5 are used to clamp and limit the protruding ends 23 of the workpiece;

[0031] A pressing mechanism 4 is provided on the substrate 1 and is used to press the main body 21 of the workpiece 2 onto the substrate 1;

[0032] Among them, the clamping assembly 5 includes a clamping frame 51, and the clamping frame 51 is provided with a clamping groove matching the protruding end 23 of the workpiece, a limiting block 52 is provided on one side of the clamping groove, and a tightening component 6 is provided on the other side of the clamping groove, and the tightening component 6 is used to press and position the protruding end 23 of the workpiece on the limiting block 52.

[0033] The positioning mechanism of the present invention positions the hole 22 of the workpiece, the pressing mechanism 4 presses the main body 21 of the workpiece 2 on the substrate 1, and multiple clamping components 5 are arranged corresponding to the various protruding ends of the workpiece 2. The pressing component 6 presses the protruding end 23 of the workpiece against the limit block 52 to complete the multi-point positioning of the workpiece 2, so that the workpiece 2 is more stably set on the substrate 1, the stability of the positioning fixture 3 is increased, and the turning processing of each end face of the workpiece 2 is convenient. The main body 21 and multiple protruding ends of the heterogeneous workpiece 2 can be positioned at one time, so that multiple surfaces of the workpiece 2 can be processed, thereby improving production efficiency.

[0034] In one embodiment of the present invention, the positioning mechanism includes a positioning jig 3 that matches the hole position 22 of the workpiece, a limiting hole 31 is provided on the positioning jig 3, a positioning pin is provided on the positioning station, and the positioning pin is passed through the limiting hole 31. The positioning jig 3 is connected to the substrate 1 through a screw 32, and an arc-shaped guide surface is provided on the edge of the positioning jig 3. The outer wall of the positioning jig 3 is connected to the inner surface of the hole position 22 of the workpiece.

[0035] Specifically, a suitable positioning jig 3 is selected according to the hole position 22 of the workpiece, the positioning pin is inserted into the limiting hole 31 on the positioning jig 3, and the positioning jig 3 is fixedly connected to the substrate 1 through a screw 32. The hole position 22 of the workpiece is slidably sleeved on the positioning jig 3 through the arc-shaped guide surface, and the outer wall of the positioning jig 3 is connected to the inner surface of the hole position 22 of the workpiece, which can facilitate the rapid positioning of the workpiece 2, is easy to use, and has a good positioning effect.

[0036] In one embodiment of the present invention, the pressing mechanism 4 includes at least one pressing component, and the pressing component includes a pressing cylinder 41, which is arranged on the substrate 1, and the pressing cylinder 41 is driven and connected to the pressing plate 42. The pressing cylinder 41 drives the pressing plate 42 to abut against the edge of the workpiece 2 to press the workpiece 2 onto the substrate 1.

[0037] In one embodiment of the present invention, a pressing block 43 is provided on the pressing rod, a pressing slope 44 is provided on the pressing block 43, a pressing surface is provided on the edge of the workpiece 2, and the pressing cylinder 41 drives the pressing slope 44 on the pressing block 43 to connect with the pressing surface on the workpiece 2.

[0038] Specifically, the pressing cylinder 41 drives the pressing slope 44 on the pressing block 43 to connect with the pressing surface on the workpiece 2, which can quickly press the workpiece 2, prepare for the operation process of the next workstation, ensure the subsequent machining effect, and further improve the stability of the workpiece 2 processing.

[0039] In one embodiment of the present utility model, the clamping component 6 includes a fixed block 61 and a movable block 62, the fixed block 61 is arranged on the clamping frame 51, and the movable block 62 is slidably arranged on the clamping frame 51, and a guide block 63 is arranged between the fixed block 61 and the movable block 62, and the guide block 63 is connected to the clamping frame 51 through an adjusting bolt 64, and the movable block 62 is pushed toward the protruding end 23 of the workpiece by rotating the adjusting bolt 64.

[0040] In one embodiment of the present utility model, a first inclined surface 65 is provided on both the fixed block 61 and the movable block 62, and a second inclined surface 66 is provided on both sides of the guide block 63, so that the guide block 63 has a trapezoidal structure, and the first inclined surface 65 is connected to the second inclined surface 66. By rotating the adjusting bolt 64, the second inclined surface 66 slides along the first inclined surface 65 to drive the movable block 62 to move.

[0041] Specifically, by rotating the adjusting bolt 64, the second inclined surface 66 on the guide block 63 slides along the fixed block 61 and the first inclined surface 65 of the movable block 62, and the movable block 62 moves along the slide groove toward the protruding end 23 of the workpiece, thereby pushing the protruding end 23 of the workpiece to move toward the limit block 52. The two inclined surfaces will correct the running path of the movable block 62 so that it tends to run more along the expected path, that is, the movable block 62 achieves a positioning effect in the moving direction toward the limit block 52, so that the positioning of the positioning fixture 3 is more accurate.

[0042] In one embodiment of the present utility model, a slide groove is provided on the clamping frame 51, a slider 67 is slidably provided on the slide groove, the movable block 62 is provided on the slider 67, a sliding spring 68 is provided on the slider 67, and the free end of the sliding spring 68 is connected to the side wall of the slide groove.

[0043] Specifically, the movable block 62 is arranged on the slider 67, and the slider 67 can guide the movement of the movable block 62, thereby ensuring the pushing accuracy of the protruding end of the workpiece 2 and the clamping effect. The free end of the sliding spring 68 is connected to the side wall of the slide groove. After the protruding end 23 of the workpiece is separated from the clamping frame 51, the movable block 62 can always be fitted together with the guide block 63 under the drive of the spring, which is convenient for the rapid clamping of subsequent heterogeneous workpieces 2 and easy to use.

[0044] In one embodiment of the present utility model, a guide groove 7 is provided on the clamping frame 51, a guide rail 71 is provided on the guide groove 7, a guide block 72 is slidably provided on the guide rail 71, a fixing member 73 is provided on the guide block 72, and the fixing member 73 is connected to the protruding end 23 of the workpiece so that the protruding end 23 of the workpiece reciprocates along the guide rail 71.

[0045] In an embodiment of the present invention, the fixing member 73 is a vacuum suction cup or a pin, and a positioning spring 74 is provided on the guide block 72 . The free end of the positioning spring 74 is connected to the bottom surface of the guide groove 7 .

[0046] Specifically, if the protruding end 23 of the workpiece has a hole or other structure, a corresponding pin is installed on the guide block 72 so that the pin is passed through the hole. If the protruding end 23 of the workpiece has an end face or other structure, a corresponding vacuum suction cup is installed on the guide block 72 so that the vacuum suction cup generates an adsorption force and adsorbs on the protruding end 23 of the workpiece. The protruding end 23 of the workpiece can be quickly positioned to ensure the rapid positioning of the workpiece 2 on the clamping frame 51 and the accuracy of subsequent clamping. The free end of the positioning spring 74 is connected to the bottom surface of the guide groove 7. After the protruding end 23 of the workpiece is separated from the fixing part 73, it can be restored to its initial position under the drive of the spring, which is convenient for rapid positioning of subsequent heterogeneous workpieces 2 and easy to use.

[0047] In one embodiment of the present utility model, a guide groove 53 is provided on the limit block 52, a spring plunger 54 is provided in the guide groove 53, a positioning hole 56 matching the spring plunger 54 is provided on the protruding end 23 of the workpiece, and the protruding end of the spring plunger 54 is inserted into the positioning hole 56.

[0048] Specifically, the protruding end 23 of the workpiece is pushed toward the limit block 52, and the protruding end of the spring plunger 54 is inserted into the positioning hole 56 of the protruding end 23 of the workpiece. The adjusting bolt 64 is continued to be rotated until the end face of the protruding end is pressed against the limit block 52. The workpiece 2 compresses the protruding end of the spring plunger 54 while guiding the moving direction of the workpiece 2, avoiding position displacement, skewness and deviation of the workpiece 2, and can quickly and accurately reach the ideal positioning position, saving positioning time; the spring plunger 54 can also realize product operation buffering.

[0049] Usage process

[0050] Select a suitable positioning jig 3 according to the hole position 22 of the workpiece, pass the positioning pin through the limiting hole 31 on the positioning jig 3, and then fix the positioning jig 3 to the base plate 1 through the screw 32. The hole position 22 of the workpiece is slidably sleeved on the positioning jig 3 through the arc-shaped guide surface. The outer wall of the positioning jig 3 is connected to the inner side of the hole position 22 of the workpiece, which can facilitate the rapid positioning of the workpiece 2. It is easy to use and has a good positioning effect. Place the protruding end 23 of the workpiece on the clamping frame 51. If the protruding end 23 of the workpiece has a hole position or other structure, install a corresponding pin on the guide block 72 so that the pin is passed through the hole position. If the protruding end 23 of the workpiece has an end face or other structure, install a corresponding vacuum suction cup on the guide block 72 so that the vacuum suction cup can be truly The empty suction cup generates an adsorption force and adsorbs on the protruding end 23 of the workpiece, which can quickly position the protruding end 23 of the workpiece. By rotating the adjusting bolt 64, the second inclined surface 66 on the guide block 63 slides along the fixed block 61 and the first inclined surface 65 of the movable block 62, and the movable block 62 moves along the slide groove toward the protruding end 23 of the workpiece, thereby pushing the protruding end 23 of the workpiece toward the limit block 52. The protruding end of the spring plunger 54 is inserted into the positioning hole 56 of the protruding end 23 of the workpiece, and the adjusting bolt 64 is continued to be rotated until the end face of the protruding end is pressed against the limit block 52, thereby completing the multi-point positioning of the main body 21 and the protruding end of the heterogeneous workpiece 2, which is convenient for turning the various end faces of the workpiece 2.

[0051] The above-described embodiments are merely preferred embodiments for the purpose of fully illustrating the present invention, and the scope of protection of the present invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention are within the scope of protection of the present invention. The scope of protection of the present invention shall be subject to the claims.

Claims

1. A position limiting processing structure, characterized in that: include: A substrate, wherein a positioning station is arranged on the substrate; A positioning mechanism, arranged on the positioning station, and used for positioning the hole position of the workpiece; A clamping mechanism is arranged on the substrate, the clamping mechanism comprises a plurality of clamping components, the clamping components are arranged in one-to-one correspondence with the protruding ends of the workpieces, and the clamping components are used to clamp and limit the protruding ends of the workpieces; A material pressing mechanism, disposed on the substrate, and used to press the main body of the workpiece onto the substrate; Wherein, the clamping assembly includes a clamping frame, a clamping groove matching the protruding end of the workpiece is provided on the clamping frame, a limiting block is provided on one side of the clamping groove, and a clamping component is provided on the other side of the clamping groove, and the clamping component is used to tightly position the protruding end of the workpiece on the limiting block.

2. The position limiting processing structure according to claim 1, characterized in that: The positioning mechanism includes a positioning jig that matches the hole position of the workpiece, the positioning jig is provided with a limit hole, the positioning station is provided with a positioning pin, the positioning pin is penetrated through the limit hole, the positioning jig is connected to the substrate by screws, the edge of the positioning jig is provided with an arc-shaped guide surface, and the outer side wall of the positioning jig is connected to the inner side surface of the hole position of the workpiece.

3. The position limiting processing structure according to claim 1, characterized in that: The pressing mechanism includes at least one pressing component, which includes a pressing cylinder. The pressing cylinder is arranged on the substrate and is drivingly connected to the pressing plate. The pressing cylinder drives the pressing plate to abut against the edge of the workpiece to press the workpiece onto the substrate.

4. The position limiting processing structure according to claim 3, characterized in that: The pressing plate is provided with a pressing block, the pressing block is provided with a pressing inclined surface, the edge of the workpiece is provided with a pressing surface, and the pressing cylinder drives the pressing inclined surface on the pressing block to connect with the pressing surface on the workpiece.

5. The position limiting processing structure according to claim 1, characterized in that: The clamping component includes a fixed block and a movable block, the fixed block is arranged on the clamping frame, the movable block is slidably arranged on the clamping frame, a guide block is arranged between the fixed block and the movable block, the guide block is connected to the clamping frame through an adjusting bolt, and the movable block is pushed to move toward the protruding end of the workpiece by rotating the adjusting bolt.

6. The position limiting processing structure according to claim 5, characterized in that: The fixed block and the movable block are both provided with a first inclined surface, and the two sides of the guide block are provided with a second inclined surface, so that the guide block has a trapezoidal structure, and the first inclined surface is connected to the second inclined surface. The second inclined surface is driven to move by rotating the adjusting bolt so that the second inclined surface slides along the first inclined surface.

7. The position limiting processing structure according to claim 5, characterized in that: The clamping frame is provided with a slide groove, a slider is slidably provided on the slide groove, the movable block is provided on the slider, a sliding spring is provided on the slider, and the free end of the sliding spring is connected to the side wall of the slide groove.

8. The position limiting processing structure according to claim 1, characterized in that: The clamping frame is provided with a guide groove, the guide groove is provided with a guide rail, the guide rail is slidably provided with a guide block, the guide block is provided with a fixing piece, and the fixing piece is connected to the protruding end of the workpiece so that the protruding end of the workpiece reciprocates along the guide rail.

9. The position limiting processing structure according to claim 8, characterized in that: The fixing member is a vacuum suction cup or a pin, and a positioning spring is arranged on the guide block, and the free end of the positioning spring is connected to the bottom surface of the guide groove.

10. The position limiting processing structure according to claim 1, characterized in that: The limit block is provided with a guide groove, a spring plunger is arranged in the guide groove, a positioning hole matching the spring plunger is arranged on the protruding end of the workpiece, and the protruding end of the spring plunger is inserted into the positioning hole.

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