Positioning device for precision part machining

Abstract

The application relates to the technical field of positioning devices, and discloses a positioning device for precision part machining, which solves the problem that when the device works, it is difficult to stably clamp different shapes of objects, the objects are easily deviated, the object machining is inaccurate, and material loss is caused. The positioning device comprises a mounting box, a placing table is fixedly installed at the upper end of the mounting box, a clamping device is installed in the mounting box, the clamping device comprises two groups of clamping plate assemblies, elastic block assemblies are fixedly installed at the lower ends of the clamping plate assemblies, torsion assemblies are rotatably installed at the two ends of the clamping plate assemblies, contraction plates are installed at the upper ends of the torsion assemblies, the torsion assemblies comprise fixed pipe shells, torsional springs are rotatably installed in the fixed pipe shells, and moving rings are fixedly installed at the lower ends of the fixed pipe shells.

Description

Technical Field

[0001] This invention relates to the field of positioning device technology, specifically to a positioning device for precision parts processing. Background Technology

[0002] Parts processing is a modern manufacturing technology that manufactures or produces components, sub-components, or assemblies that make up machines and equipment. This technology is widely used in various industries and fields. Precision parts are accessories widely used in industries such as automobiles, communications, medical devices, watches, mobile phones, and computers. Unlike ordinary parts, precision parts are more precise and more suitable for industries with high precision requirements. Precision parts are often used for processing mechanical workpieces.

[0003] A Chinese patent with publication number CN221583321U discloses a high-precision mechanical parts processing positioning device. When the device is in use, the motor is controlled to rotate forward and backward by a rotary switch on the upper surface of the base near the motor position, which drives the bidirectional lead screw to rotate. When the bidirectional lead screw rotates, it can drive the second connecting frame on the two third ball nut seats to move closer or further apart. When they move closer, the clamping plate and clamping pad can fix and clamp the parts.

[0004] When this device is in operation, it is difficult to achieve a stable and close grip when clamping objects of different shapes. This can easily cause the objects to shift, resulting in inaccurate processing, material loss, and greatly reducing the practicality of the device. Summary of the Invention

[0005] The purpose of this invention is to provide a positioning device for precision parts processing. By using this device, the problem of difficulty in achieving stable and close clamping when holding objects of different shapes is solved, which easily causes the objects to shift, resulting in inaccurate processing and material loss.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a positioning device for precision parts processing, comprising a mounting box, a placement platform fixedly mounted on the upper end of the mounting box, a clamping device installed inside the mounting box, the clamping device comprising two sets of clamping plate assemblies, an elastic block assembly fixedly mounted on the lower end of the clamping plate assembly, and torsion assemblies rotatably mounted on both ends of the clamping plate assembly, a shrinking plate mounted on the upper end of the torsion assembly, the torsion assembly comprising a fixed tube shell, a torsion spring rotatably mounted inside the fixed tube shell, and a moving ring fixedly mounted on the lower end of the fixed tube shell; the shrinking plate comprises a connecting rod located inside the clamping plate assembly, a clip and a block fixedly mounted on one end of the connecting rod inside the clamping plate assembly, the clip and block matching the clamping plate assembly; when it is necessary to clamp an object on the placement platform, the clamping plate assembly is activated to move towards the center. The device moves as the clamping plate assembly approaches the object. The elastic block assembly contacts the object first, and the two ends of the clamping plate assembly rotate inward to clamp it. When the object is square, the two ends of the clamping plate assemblies on both sides rotate inward to clamp it. Due to the rotation of the torsion spring inside the fixed tube shell, the connecting rod moves into the clamping plate assembly. The two ends of the clamping plate assembly first clamp inward, and then turn from a V-shaped state to a flat state to clamp the object. When the object is round, the two ends of the clamping plate assemblies on both sides rotate inward to clamp it. Due to the rotation of the torsion spring inside the fixed tube shell, the connecting rod moves into the clamping plate assembly. The two ends of the clamping plate assembly first rotate inward to clamp it, so that the two sets of clamping plate assemblies form a V-shape to clamp the object. This allows the device to maintain stable clamping when facing different objects.

[0007] Preferably, the mounting box includes an outer shell, and the upper end of the outer shell is provided with four sets of square grooves. The square grooves match the fixed tube shells. The four sets of fixed tube shells on the clamping plate assembly slide in the square grooves to complete the rotation of the two sets of clamping plate assemblies, so that they form a V-shape to stably clamp the object.

[0008] Preferably, the upper end of the outer shell is provided with two sets of square grooves, which are matched with the elastic block assembly. The two sets of elastic block assemblies on the clamping plate assembly slide in the square grooves to complete the cooperation and rotation of the two sets of clamping plate assemblies and the torsion assembly, thereby completing the stable clamping of square and round objects.

[0009] Preferably, a rotary motor is fixedly installed inside the outer casing. A positive and negative lead screw is fixedly installed at the drive end of the rotary motor. A gear is rotatably installed in the middle section of the positive and negative lead screw. A connecting block is rotatably installed at the other end of the positive and negative lead screw. An elastic block assembly is threaded on the outer side of the positive and negative lead screw. When we need to clamp an object on the placement platform, we start the rotary motor, which drives the positive and negative lead screw to clamp the two sets of clamping plate assemblies inward. At the same time, it drives the elastic block assembly to move closer to the object, so that the two sets of clamping plate assemblies clamp inward first from both sides, thus completing the clamping of the object.

[0010] Preferably, a gear belt is meshed on the outer side of gear one, and a gear two is meshed on the inner side of the other end of gear belt one. Two positive and negative lead screws are rotatably mounted on both ends of gear two. Two sets of moving rings are threaded on the outer side of the positive and negative lead screws two. A connecting block two is rotatably mounted on the end of the positive and negative lead screws two near the rotating motor. The other end of the connecting block two is fixedly connected to the outer casing. A gear three is fixedly mounted on the other end of the positive and negative lead screws two. A gear belt two is meshed on the outer side of gear three. A gear four is meshed on the inner side of the other end of gear belt two. A positive and negative lead screw three is fixedly mounted on the end of gear four near the rotating motor. The outer side of the positive and negative lead screw three... Two sets of moving rings are installed. The other end of the positive and negative lead screw three is rotatably installed with a connecting block three. The other end of the connecting block three is fixedly connected to the outer shell. When we need to clamp the object on the placement table, we start the rotating motor, which drives the positive and negative lead screw one and the two sets of clamping plate assemblies to clamp inward. At the same time, it drives gear one to drive gear belt one to rotate. Gear belt one drives gear two to rotate. Gear two drives the positive and negative lead screw two to start rotating, which drives the two sets of clamping plate assemblies to clamp inward. At the same time, the positive and negative lead screw two drives gear belt two to rotate. Gear four drives the positive and negative lead screw three to rotate, thus completing the clamping of the object on the placement table.

[0011] Preferably, the clamping plate assembly includes two sets of clamping plates, each set of clamping plates having a T-slot. A T-shaped connecting plate is fixedly installed at one end of the clamping plate, and the T-shaped connecting plate matches the T-slot. Pressure sensors are fixedly installed on the sides of the two sets of clamping plates that are close to each other. When we clamp an object inward through the two sets of clamping plate assemblies, the two sets of clamping plates move in a plane when the elastic block assembly is not in contact with the object. When the object comes into contact with the object, the outer sides of the two sets of clamping plates clamp the object in a V-shape through the contraction of the elastic block assembly. When facing different objects, the two sets of clamping plates clamp the object in different planes.

[0012] Preferably, the clamping plate has a T-shaped groove two on the side near the connecting rod. A card and a block are slidably installed inside the T-shaped groove two. When the two sets of clamping plates clamp in a V-shape, the clamping plates rotate inward, causing the connecting rod to slide inward to the T-shaped groove two, thus tightly clamping the object.

[0013] Preferably, a buffer pad is installed on the side of the two sets of clamping plates that are close to each other. Multiple sets of elastic elements are fixedly installed on the inner side of the buffer pad. After the two sets of clamping plates clamp the object, the vibration generated during the clamping operation is buffered by the buffer pad.

[0014] Preferably, a rotating shaft is rotatably mounted at the center of the two sets of clamping plates, and the two sets of clamping plates rotate around the rotating shaft. The two sets of clamping plates complete the rotation through the central rotating shaft.

[0015] Preferably, the elastic block assembly includes a connecting shell, an elastic element two is fixedly installed inside the connecting shell, an elastic block is slidably installed on the inner side of the elastic element two, and a sliding block is fixedly installed at the lower end of the connecting shell. The sliding block is threadedly connected to a positive and negative lead screw. When we clamp the object inward through the two sets of clamping plate assemblies, the positive and negative lead screw drives the sliding block to move. Through the contact between the elastic block and the object, the center of the two sets of clamping plates makes delayed contact with the object, causing the two sides of the two sets of clamping plates to clamp inward first, thus completing the clamping of objects of different shapes.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention proposes a positioning device for precision parts processing. When an object on a platform needs to be clamped, the clamping plate assembly moves towards the center. As the clamping plate assembly approaches the object, the elastic block assembly contacts the object first. The two ends of the clamping plate assembly rotate inward to clamp the object. When the object is square, the two ends of the clamping plate assemblies rotate inward to clamp the object. Due to the rotation of the torsion spring inside the fixed shell, the connecting rod moves into the clamping plate assembly. The two ends of the clamping plate assembly first clamp inward, then change from a V-shaped state to a flat state to clamp the object. When the object is round, the two ends of the clamping plate assemblies rotate inward to clamp the object. Due to the rotation of the torsion spring inside the fixed shell, the connecting rod moves into the clamping plate assembly. The two ends of the clamping plate assembly first rotate inward to clamp the object, so that the two sets of clamping plate assemblies clamp the object in a V-shape. This allows the device to maintain stable clamping when facing different objects. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the outer shell structure of the present invention; Figure 3 This is a schematic diagram of the internal structure of the mounting box of the present invention; Figure 4 This is a schematic diagram of the clamping device structure of the present invention; Figure 5 This is a schematic diagram of the clamping plate assembly structure of the present invention; Figure 6 This is a schematic diagram of the torsion assembly, shrink plate, and buffer pad structure of the present invention; Figure 7 This is a schematic diagram of the planar structure of the torsion assembly of the present invention; Figure 8 This is a schematic diagram of the planar structure of the elastic block assembly of the present invention.

[0018] In the diagram: 1. Mounting box; 11. Outer shell; 111. Square groove one; 112. Square groove two; 12. Rotating motor; 13. Lead screw one; 131. Gear one; 132. Connecting block one; 14. Gear belt one; 141. Gear two; 15. Lead screw two; 151. Connecting block two; 152. Gear three; 16. Gear belt two; 17. Gear four; 18. Lead screw three; 19. Connecting block three; 2. Placement platform; 3. Clamping device; 31. Clamping plate Components; 311, clamping plate; 3111, T-slot; 312, T-connecting plate; 313, T-slot II; 32, torsion assembly; 321, fixed tube shell; 322, torsion spring; 323, moving ring; 33, elastic block assembly; 331, connecting shell; 332, elastic element II; 333, elastic block; 334, sliding block; 34, shrink plate; 341, connecting rod; 342, clip and block; 35, buffer pad; 351, elastic element; 36, rotating shaft. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] To further understand the content of this invention, a detailed description of the invention will be provided in conjunction with the accompanying drawings.

[0021] Combination Figure 1 , Figure 6-7A positioning device for precision parts processing includes a mounting box 1. A placement platform 2 is fixedly mounted on the upper end of the mounting box 1. A clamping device 3 is installed inside the mounting box 1. The clamping device 3 includes two sets of clamping plate assemblies 31. An elastic block assembly 33 is fixedly mounted on the lower end of the clamping plate assembly 31. Torsion assemblies 32 are rotatably mounted on both ends of the clamping plate assembly 31. A shrinking plate 34 is mounted on the upper end of the torsion assembly 32. The torsion assembly 32 includes a fixed tube shell 321. A torsion spring 322 is rotatably mounted inside the fixed tube shell 321. A moving ring 323 is fixedly mounted on the lower end of the fixed tube shell 321. The shrinking plate 34 includes a connecting rod 341 located inside the clamping plate assembly 31. A clip and block 342 are fixedly mounted on one end of the connecting rod 341 inside the clamping plate assembly 31. The clip and block 342 matches the clamping plate assembly 31. When it is necessary to clamp an object on the placement platform 2, the clamping plate assembly 31 is activated. Moving towards the center, when the clamping plate assembly 31 approaches the object, the elastic block assembly 33 contacts the object first, and the two ends of the clamping plate assembly 31 rotate inward to clamp. When the object is square, the two ends of the clamping plate assemblies 31 on both sides rotate inward to clamp. Due to the rotation of the torsion spring 322 inside the fixed tube shell 321, the connecting rod 341 moves into the clamping plate assembly 31. The two ends of the clamping plate assembly 31 first clamp inward, and then turn from a V-shaped state to a flat state to clamp the object. When the object is round, the two ends of the clamping plate assemblies 31 on both sides rotate inward to clamp. Due to the rotation of the torsion spring 322 inside the fixed tube shell 321, the connecting rod 341 moves into the clamping plate assembly 31. The two ends of the clamping plate assembly 31 first rotate inward to clamp, so that the two sets of clamping plate assemblies 31 clamp the object in a V-shape, so that the device can maintain stable clamping when facing different objects.

[0022] Combination Figure 1-2 , Figure 4 , Figure 6 A positioning device for precision parts processing includes a mounting box 1 comprising a housing 11, the upper end of which is provided with four sets of square grooves 111. The square grooves 111 match the fixed tube shells 321. The four sets of fixed tube shells 321 on the clamping plate assembly 31 slide within the square grooves 111 to rotate the two sets of clamping plate assemblies 31, thereby forming a V-shape to stably clamp the object.

[0023] Combination Figure 2 and Figure 4A positioning device for precision parts processing has two sets of square grooves 112 on the upper end of the outer shell 11. The square grooves 112 match the elastic block assembly 33. The two sets of elastic block assemblies 33 on the clamping plate assembly 31 slide in the square grooves 112 to complete the coordinated rotation of the two sets of clamping plate assemblies 31 and the torsion assembly 32, thereby completing the stable clamping of square and round objects.

[0024] Combination Figure 2 and Figure 3 A positioning device for precision parts processing includes a rotary motor 12 fixedly installed inside the housing 11. A positive and negative lead screw 13 is fixedly installed at the drive end of the rotary motor 12. A gear 131 is rotatably installed in the middle section of the positive and negative lead screw 13. A connecting block 132 is rotatably installed at the other end of the positive and negative lead screw 13. An elastic block assembly 33 is threaded on the outer side of the positive and negative lead screw 13. When it is necessary to clamp an object on the placement platform 2, the rotary motor 12 is started, which drives the positive and negative lead screw 13 to clamp the two sets of clamping plate assemblies 31 inward. At the same time, the elastic block assembly 33 is driven to move closer to the object, so that the two sets of clamping plate assemblies 31 clamp inward first from both sides, thus completing the clamping of the object.

[0025] Combination Figure 2 and Figure 3 A positioning device for precision parts machining includes a gear belt 14 meshing with the outer side of a gear 131, a gear 2 141 meshing with the inner side of the other end of the gear belt 14, a positive and negative lead screw 15 rotatably mounted at both ends of the gear 2 141, two sets of moving rings 323 threaded on the outer side of the positive and negative lead screw 15, a connecting block 2 151 rotatably mounted at the end of the positive and negative lead screw 15 near the rotating motor 12, the other end of the connecting block 2 151 fixedly connected to the outer casing 11, a gear 3 152 fixedly mounted at the other end of the positive and negative lead screw 152, a gear belt 2 16 meshing with the outer side of the gear 3 152, a gear 4 17 meshing with the inner side of the other end of the gear belt 2 16, and a positive and negative lead screw 3 18 fixedly mounted at the end of the gear 4 17 near the rotating motor 12. Two sets of moving rings 323 are installed on the outer thread of the reverse screw 3 18. The other end of the forward and reverse screw 3 18 is rotatably installed with a connecting block 3 19. The other end of the connecting block 3 19 is fixedly connected to the outer shell 11. When we need to clamp the object on the placement platform 2, we start the rotating motor 12 to drive the forward and reverse screw 1 13 to clamp the two sets of clamping plate assemblies 31 inward. At the same time, it drives the gear 1 131 to drive the gear belt 1 14 to rotate. The gear belt 1 14 drives the gear 2 141 to rotate. The gear 2 141 drives the forward and reverse screw 2 15 to start rotating, driving the two sets of clamping plate assemblies 31 to clamp inward. At the same time, the forward and reverse screw 2 15 drives the gear belt 2 16 to rotate. The gear 4 17 drives the forward and reverse screw 3 18 to rotate, thus completing the clamping of the object on the placement platform 2.

[0026] Combination Figure 4 and Figure 5 A positioning device for precision parts processing includes a clamping plate assembly 31 comprising two sets of clamping plates 311, each set of clamping plates 311 having a T-slot 3111. A T-shaped connecting plate 312 is fixedly installed at one end of the clamping plate 311, and the T-shaped connecting plate 312 matches the T-slot 3111. Pressure sensors are fixedly installed on the sides of the two sets of clamping plates 311 that are close to each other. When an object is clamped inward by the two sets of clamping plate assemblies 31, the two sets of clamping plates 311 move in a plane when the elastic block assembly 33 is not in contact with the object. When the object is in contact with the object, the outer sides of the two sets of clamping plates 311 form a V-shape to clamp the object through the contraction of the elastic block assembly 33. When facing different objects, the two sets of clamping plates 311 clamp the object in different planes.

[0027] Combination Figure 6 and Figure 7 A positioning device for precision parts processing has a T-slot 313 on the side of the clamping plate 311 near the connecting rod 341. A clip and a block 342 are slidably installed inside the T-slot 313. When the two clamping plates 311 clamp in a V-shape, the clamping plates 311 rotate inward, causing the connecting rod 341 to slide into the T-slot 313, thus tightly clamping the object.

[0028] Combination Figure 5 A positioning device for precision parts processing has a buffer pad 35 installed on one side of two sets of clamping plates 311 that are close to each other. Multiple sets of elastic elements 351 are fixedly installed on the inner side of the buffer pad 35. After the two sets of clamping plates 311 clamp the object, the vibration generated during the clamping operation is buffered by the buffer pad 35.

[0029] Combination Figure 5 and Figure 7 A positioning device for precision parts processing, wherein a rotating shaft 36 is rotatably mounted on the center of two sets of clamping plates 311, and the two sets of clamping plates 311 rotate around the rotating shaft 36, and the two sets of clamping plates 311 complete the rotation through the central rotating shaft 36.

[0030] Combination Figure 4 and Figure 8A positioning device for precision parts processing includes an elastic block assembly 33 comprising a connecting shell 331, an elastic element 332 fixedly installed inside the connecting shell 331, an elastic block 333 slidably installed on the inner side of the elastic element 332, and a sliding block 334 fixedly installed at the lower end of the connecting shell 331. The sliding block 334 is threadedly connected to a positive and negative lead screw 13. When an object is clamped inward by the two sets of clamping plate assemblies 31, the sliding block 334 is moved by the positive and negative lead screw 13, and the elastic block 333 contacts the object, causing the center of the two sets of clamping plates 311 to make delayed contact with the object, resulting in the two sides of the two sets of clamping plates 311 clamping inward first, thus completing the clamping of objects of different shapes.

[0031] 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.

[0032] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A positioning device for precision parts machining, comprising a mounting box (1), a placement platform (2) fixedly mounted on the upper end of the mounting box (1), a clamping device (3) installed inside the mounting box (1), the clamping device (3) comprising two sets of clamping plate assemblies (31), an elastic block assembly (33) fixedly mounted on the lower end of the clamping plate assembly (31), and a torsion assembly (32) rotatably mounted on both ends of the clamping plate assembly (31), and a shrink plate (34) mounted on the upper end of the torsion assembly (32), characterized in that: The torsion assembly (32) includes a fixed tube shell (321), a torsion spring (322) is rotatably installed inside the fixed tube shell (321), and a movable ring (323) is fixedly installed at the lower end of the fixed tube shell (321). The shrink plate (34) includes a connecting rod (341) located inside the clamping plate assembly (31). A clip and block (342) are fixedly installed at one end of the connecting rod (341) inside the clamping plate assembly (31). The clip and block (342) matches the clamping plate assembly (31). The mounting box (1) includes a shell (11), and a rotating motor (12) is fixedly installed inside the shell (11). A positive and negative lead screw (13) is fixedly installed at the drive end of the rotating motor (12), and a gear (131) is rotatably installed in the middle section of the positive and negative lead screw (13). Gear belt 1 (14) is meshed on the outer side of gear 1 (131), and gear 2 (141) is meshed on the inner side of the other end of gear belt 1 (14). Two positive and negative lead screws 2 (15) are rotatably mounted on both ends of gear 2 (141). Two sets of moving rings (323) are threaded on the outer side of positive and negative lead screws 2 (15). A connecting block 2 (151) is rotatably mounted on the end of positive and negative lead screws 2 (15) near the rotating motor (12). The other end of connecting block 2 (151) is fixedly connected to the outer casing (11). One end is fixedly mounted with gear three (152), gear belt two (16) is meshed on the outer side of gear three (152), gear four (17) is meshed on the inner side of the other end of gear belt two (16), gear four (17) is fixedly mounted on the end of gear four (17) near the rotating motor (12), two sets of moving rings (323) are threaded on the outer side of the positive and negative screw three (18), and connecting block three (19) is rotatably mounted on the other end of the positive and negative screw three (18), and the other end of connecting block three (19) is fixedly connected to the outer shell (11); The clamping plate assembly (31) includes two sets of clamping plates (311). A buffer pad (35) is installed on one side of the two sets of clamping plates (311) that are close to each other. Multiple sets of elastic elements (351) are fixedly installed on the inner side of the buffer pad (35).

2. A positioning device for precision parts machining according to claim 1, characterized in that: The upper end of the outer shell (11) is provided with four sets of square grooves (111), which are matched with the fixed tube shell (321).

3. A positioning device for precision parts machining according to claim 2, characterized in that: The upper end of the outer shell (11) is provided with two sets of square grooves (112), which are matched with the elastic block assembly (33).

4. A positioning device for precision parts machining according to claim 3, characterized in that: The other end of the positive and negative lead screw (13) is rotatably mounted with a connecting block (132), and an elastic block assembly (33) is threaded on the outer side of the positive and negative lead screw (13).

5. A positioning device for precision parts machining according to claim 1, characterized in that: Each clamping plate (311) is provided with a T-slot (3111), and a T-connecting plate (312) is fixedly installed at one end of the clamping plate (311). The T-connecting plate (312) matches the T-slot (3111), and pressure sensors are fixedly installed on the side of the two clamping plates (311) that are close to each other.

6. A positioning device for precision parts machining according to claim 5, characterized in that: The clamping plate (311) has a T-slot (313) on the side near the connecting rod (341), and a card and a block (342) are slidably installed inside the T-slot (313).

7. A positioning device for precision parts machining according to claim 6, characterized in that: The two sets of clamping plates (311) are rotatably mounted with a rotating shaft (36) at their center, and the two sets of clamping plates (311) rotate around the rotating shaft (36).

8. A positioning device for precision parts machining according to claim 1, characterized in that: The elastic block assembly (33) includes a connecting shell (331), an elastic element two (332) is fixedly installed inside the connecting shell (331), an elastic block (333) is slidably installed on the inner side of the elastic element two (332), and a sliding block (334) is fixedly installed at the lower end of the connecting shell (331). The sliding block (334) is threadedly connected to the positive and negative lead screw one (13).

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