Positioning device for metal part machining

Abstract

The invention provides a positioning device for metal part machining, and belongs to the technical field of metal part machining, the positioning device comprises a positioning table, a plurality of groups of positioning blocks, an elastic supporting assembly, a first driving assembly, a clamping block and a second driving assembly, each group of positioning blocks is internally provided with a cavity, the plurality of positioning blocks are divided into two rows, and the elastic supporting assembly is arranged in the cavity; the two rows of positioning blocks are oppositely distributed on the upper portion of the positioning table, the first driving assembly is installed on the upper portion of the positioning table, the two rows of positioning blocks are connected with the first driving assembly through the elastic supporting assemblies, and the first driving assembly is used for driving the elastic supporting assemblies to move oppositely. And then the two rows of positioning blocks are driven to move oppositely, so that the two rows of positioning blocks are in contact with the two opposite sides of the metal piece correspondingly. Compared with the prior art, the metal part with the side wall of a special-shaped structure can be effectively clamped and positioned, and the clamping and positioning device has the advantages of being good in clamping and positioning effect and firm and reliable in positioning.

Description

Technical Field

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

[0002] Currently, when machining metal parts, clamping and positioning devices are needed to clamp and position them to ensure stability during the machining process.

[0003] Existing clamping and positioning devices mostly use a drive mechanism to move two sets of clamping blocks in opposite directions when clamping and positioning metal parts. The two sets of clamping blocks clamp the metal parts in opposite directions. However, this clamping method can only stably clamp metal parts with planar or round sidewalls. When the sidewalls of the metal parts are non-planar or non-round irregular shapes, the clamping blocks cannot fully fit the irregular sidewalls of the metal parts, resulting in poor clamping stability and making subsequent stable processing difficult. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the technical problem to be solved by the embodiments of the present invention is to provide a positioning device for metal part processing.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: A positioning device for machining metal parts includes a positioning stage, a positioning block, an elastic support assembly, a first drive assembly, a clamping block, and a second drive assembly. The positioning blocks are provided in several groups, and each group of positioning blocks has a cavity inside. The positioning blocks are arranged in two rows, and the two rows of positioning blocks are distributed opposite each other on the upper part of the positioning platform. The first driving component is mounted on the upper part of the positioning platform. Both rows of positioning blocks are connected to the first driving component through the elastic support component. The first driving component is used to drive the elastic support component to move towards each other, thereby driving the two rows of positioning blocks to move towards each other, so that the two rows of positioning blocks respectively contact the opposite sides of the metal part. The clamping blocks are provided in several groups, and each group of positioning blocks has a set of clamping blocks in the cavity inside. The second drive component is located at the bottom of the positioning platform. When the two rows of positioning blocks act on the opposite sides of the metal part, the second drive component drives several clamping blocks to move out from the corresponding cavity to clamp the metal part in opposite directions.

[0006] As a further improvement of the present invention: the first driving assembly includes a driving shaft, a first guide rod, and a support plate. The support plate is provided in two sets, which are respectively arranged on the opposite sides of the two rows of positioning blocks. The drive shaft is opposite to and parallel to the first guide rod. Both the drive shaft and the first guide rod are rotatably mounted on the upper part of the positioning platform via support seats. The drive shaft and the first guide rod pass through the two sets of support plates, and the first guide rod is movably engaged with the two sets of support plates. The drive shaft has two sets of threaded sections with opposite directions on its exterior, and the drive shaft engages with the two sets of support plates through these threaded sections. The elastic support assembly includes several first elastic elements and several support rods. Each group of positioning blocks is fixedly provided with a set of support rods on one side. The ends of several support rods away from the corresponding positioning blocks pass through the support plate and are movably engaged with the support plate. Each group of support rods is fitted with a set of first elastic members. One end of the first elastic member is connected to the corresponding positioning block, and the other end is connected to the support plate, which is used to provide elastic support for the positioning block.

[0007] As a further improvement of the present invention: a slot is provided on the positioning platform, and an inclined surface is provided on one side of the clamping block. The second drive assembly includes a screw, a top support plate, a sleeve, a second guide rod, and a top support rod. Several sets of top support rods are provided, each corresponding to one of the positioning blocks. The upper end of each set of top support rods extends from the bottom of the corresponding positioning block to the interior of the corresponding cavity, and the lower end of each set of top support rods extends from the slot to below the positioning platform. A set of bases is fixedly installed at the lower end of each set of top support rods. The top support plate is located below the positioning platform. Several sets of sleeves are provided, and several sleeves are fixedly installed on the side wall of the top support plate. The screw vertically penetrates one of the sets of sleeves and is threadedly engaged with the set of sleeves. The upper end of the screw penetrates the positioning platform and extends above the positioning platform. The screw is rotatably engaged with the positioning platform. The upper end of the second guide rod is fixedly connected to the bottom of the positioning platform, and the lower end vertically penetrates the other sleeve and is movably engaged with the sleeve.

[0008] As a further improvement of the present invention: the upper surface of the top support plate and the lower surface of the base are both provided with a frosted surface.

[0009] As a further improvement of the present invention: each set of top support rods is further fixedly provided with a ring seat, and the upper part of each set of ring seats is connected to the bottom of the corresponding positioning block through a set of third elastic elements, the third elastic elements being used to provide support for the top support rods. The clamping block is also connected to the inner wall of the cavity by a second elastic element, which provides elastic tension to the clamping block.

[0010] As a further improvement of the present invention: a handwheel is fixedly provided at both the end of the drive shaft and the end of the screw.

[0011] As a further improvement of the present invention: the first elastic element, the second elastic element and the third elastic element are springs or metal sheets.

[0012] Compared with the prior art, the beneficial effects of the present invention are: In this embodiment of the invention, when clamping and positioning a metal part to be processed, the metal part can be placed on the upper part of the positioning platform and positioned between two rows of positioning blocks. Then, the first driving component drives the two rows of positioning blocks to move towards each other. If the sidewall of the metal part to be processed is planar, the two rows of positioning blocks can act synchronously on the planar sidewall of the metal part. After the two rows of positioning blocks act on the sidewall of the metal part, the second driving component drives several clamping blocks to move, so that several clamping blocks move out of the corresponding cavity. The moved clamping blocks act on the planar sidewall of the metal part, realizing the opposing clamping and positioning of the metal part with a planar sidewall. If the sidewall of the metal part to be processed has an irregular structure, several positioning blocks in the same row will act on the irregular sidewall of the metal part in turn. The elastic support component will retract adaptively until all two rows of positioning blocks have acted on the irregular sidewall of the metal part. Then, the second drive component will drive several clamping blocks to move, causing several clamping blocks to move out of the corresponding cavity. The moved clamping blocks will act on the irregular sidewall of the metal part, realizing the opposing clamping and positioning of the metal part with an irregular sidewall. Compared with the existing technology, it can effectively clamp and position metal parts with irregular sidewalls, and has the advantages of good clamping and positioning effect and firm and reliable positioning. Attached Figure Description

[0013] Figure 1 A schematic diagram of the structure of a positioning device for metal part processing. Figure 1 ; Figure 2 A schematic diagram of the structure of a positioning device for metal part processing. Figure 2 ; Figure 3 for Figure 1 Enlarged view of region A in the middle; Figure 4 for Figure 2 Enlarged view of region B in the middle; In the diagram: 10-positioning platform, 101-slot, 102-support base, 20-positioning block, 201-cavity, 30-elastic support assembly, 301-first elastic element, 302-support rod, 40-first drive assembly, 401-drive rod, 402-threaded section, 403-first guide rod, 404-support plate, 50-clamping block, 501-second elastic element, 60-second drive assembly, 601-screw, 602-top support plate, 603-sleeve, 604-second guide rod, 605-base, 606-top support rod, 607-ring seat, 608-third elastic element. Detailed Implementation

[0014] The technical solution of the present invention will be further described in detail below with reference to specific embodiments.

[0015] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0016] Please see Figure 1 , Figure 2 as well as Figure 3 This embodiment provides a positioning device for metal part processing, including a positioning table 10, positioning blocks 20, an elastic support assembly 30, a first driving assembly 40, a clamping block 50, and a second driving assembly 60. The positioning blocks 20 are arranged in several groups, each group having a cavity 201 inside. The positioning blocks 20 are divided into two rows, with the two rows of positioning blocks 20 distributed opposite each other on the upper part of the positioning table 10. The first driving assembly 40 is mounted on the upper part of the positioning table 10. Both rows of positioning blocks 20 are connected to the first driving assembly 40 through the elastic support assembly 30. Component 40 is used to drive the elastic support component 30 to move towards each other, thereby driving the two rows of positioning blocks 20 to move towards each other, so that the two rows of positioning blocks 20 respectively contact the opposite sides of the metal part. The clamping block 50 is provided in several groups, and each group of positioning blocks 20 has a set of clamping blocks 50 in the cavity 201 inside the cavity. The second driving component 60 is provided at the bottom of the positioning platform 10. When the two rows of positioning blocks 20 act on the opposite sides of the metal part, the second driving component 60 drives several clamping blocks 50 to move out from the corresponding cavity 201 to clamp the metal part in opposite directions.

[0017] When clamping and positioning a metal part to be processed, the metal part can be placed on the upper part of the positioning table 10 and positioned between two rows of positioning blocks 20. Then, the first driving assembly 40 drives the two rows of positioning blocks 20 to move towards each other. If the side wall of the metal part to be processed is planar, the two rows of positioning blocks 20 can act synchronously on the planar side wall of the metal part. After the two rows of positioning blocks 20 act on the side wall of the metal part, the second driving assembly 60 drives several clamping blocks 50 to move, so that several clamping blocks 50 are moved out from the corresponding cavity 201. The moved clamping blocks 50 act on the metal part. The planar sidewalls enable opposing clamping and positioning of metal parts with planar sidewalls. If the sidewalls of the metal part to be processed are irregularly shaped, the positioning blocks 20 in the same row act sequentially on the irregularly shaped sidewalls of the metal part. The elastic support component 30 retracts adaptively until all two rows of positioning blocks 20 act on the irregularly shaped sidewalls of the metal part. Then, the second drive component 60 drives the clamping blocks 50 to move, causing the clamping blocks 50 to move out of the corresponding cavity 201. The moved clamping blocks 50 act on the irregularly shaped sidewalls of the metal part, thus achieving opposing clamping and positioning of the metal part with irregularly shaped sidewalls.

[0018] Please see Figure 1 In one embodiment, the first drive assembly 40 includes a drive shaft 401, a first guide rod 403, and a support plate 404. Two sets of support plates 404 are provided, each set positioned on a side of the two rows of positioning blocks 20 that are far apart from each other. The drive shaft 401 and the first guide rod 403 are opposite to and parallel to each other. Both the drive shaft 401 and the first guide rod 403 are rotatably mounted on the upper part of the positioning platform 10 via a support base 102. The drive shaft 401 and the first guide rod 403 pass through both sets of support plates 404. The first guide rod 403 is movably engaged with both sets of support plates 404. Two sets of oppositely rotating parts are provided outside the drive shaft 401. The drive shaft 401 is threaded with two sets of support plates 404 through two sets of threaded sections 402. The elastic support assembly 30 includes several first elastic elements 301 and several support rods 302. Each set of positioning blocks 20 has a set of support rods 302 fixedly arranged on one side. The ends of the support rods 302 away from the corresponding positioning blocks 20 pass through the support plates 404 and are movably engaged with the support plates 404. Each set of support rods 302 is sleeved with a set of first elastic elements 301. One end of the first elastic element 301 is connected to the corresponding positioning block 20, and the other end is connected to the support plate 404, for providing elastic support to the positioning block 20.

[0019] By rotating the drive shaft 401, the two sets of threaded sections 402 on the drive shaft 401 engage with the two sets of support plates 404, thereby driving the two sets of support plates 404 to move towards each other. When the two sets of support plates 404 move towards each other, several first elastic elements 301 push two rows of positioning blocks 20 to move towards each other. When the sidewall of the metal part to be processed is planar, the two rows of positioning blocks 20 moving towards each other act synchronously on the planar sidewall of the metal part. Then, the second drive assembly 60 drives several clamping blocks 50 to move, causing the clamping blocks 50 to move out of the corresponding cavities 201, thereby enabling the machining of the metal part with a planar sidewall. When the sidewall of the metal part to be processed has an irregular structure, the two rows of positioning blocks 20 moving in opposite directions act on the irregular sidewall of the metal part in turn. During this process, the positioning blocks 20 acting on the irregular sidewall of the metal part first can drive the corresponding support rods 302, so that the support rods 302 move relative to the support plate 404, and at the same time drive the corresponding first elastic member 301 to compress until all the positioning blocks 20 are in contact with the irregular sidewall of the metal part. Then, the second driving component 60 drives the clamping blocks 50 to move, so that the clamping blocks 50 move out of the corresponding cavity 201, and then clamp the metal part with the irregular sidewall in opposite directions.

[0020] Please see Figure 1 , Figure 2 , Figure 3 as well as Figure 4 In one embodiment, the positioning platform 10 has a slot 101, and the clamping block 50 has an inclined surface on one side. The second driving assembly 60 includes a screw 601, a top support plate 602, a sleeve 603, a second guide rod 604, and a top support rod 606. Several sets of top support rods 606 are provided corresponding to the positioning blocks 20. The upper end of each set of top support rods 606 extends from the bottom of the corresponding positioning block 20 to the interior of the corresponding cavity 201, and the lower end of each set of top support rods 606 extends from the slot 101 to below the positioning platform 10. A set of bases 605 is fixedly provided at the lower end of each set of top support rods 606. The top support plate 602 is disposed below the positioning platform 10. Several sets of sleeves 603 are provided, and several sets of sleeves 603 are fixedly installed on the side wall of the top support plate 602. The screw 601 vertically penetrates one set of sleeves 603 and is threadedly engaged with the set of sleeves 603. The upper end of the screw 601 penetrates the positioning platform 10 and extends above the positioning platform 10. The screw 601 is rotatably engaged with the positioning platform 10. The upper end of the second guide rod 604 is fixedly connected to the bottom of the positioning platform 10, and the lower end vertically penetrates from the inside of another sleeve 603 and is movably engaged with the sleeve 603.

[0021] When the drive shaft 401 rotates and drives the two rows of positioning blocks 20 to move towards each other, the two rows of positioning blocks 20 can drive several top support rods 606 to move synchronously. When all the positioning blocks 20 act on the side wall of the metal part, the several top support rods 606 move to the area above the top support plate 602. At this time, the operator rotates the screw 601. Through the threaded engagement between the screw 601 and the corresponding sleeve 603, the top support plate 602 is driven to move upward. When the top support plate 602 moves upward, it acts on the base 605 at the lower end of the several top support rods 606, thereby pushing the several top support rods 606 upward. When the several top support rods 606 move upward, their upper ends act on the inclined surface on one side of several clamping blocks 50, thereby pushing the several clamping blocks 50 out of the corresponding cavity 201. After the several clamping blocks 50 are pushed out of the corresponding cavity 201, they act on the side wall of the metal part, thereby clamping the metal part in opposite directions and realizing the clamping and positioning of the metal part.

[0022] In one embodiment, the upper surface of the top support plate 602 and the lower surface of the base 605 are both provided with a frosted surface. After the top support rod 606 pushes the clamping block 50 out of the corresponding cavity 201 and clamps and positions the metal part, the upper surface of the top support plate 602 and the lower surface of the base 605 are in contact through the frosted surface, which can increase the friction between the top support rod 606 and the top support plate 602, thereby ensuring that the clamping blocks 50 can stably clamp and position the metal part.

[0023] Please see Figure 3 as well as Figure 4 In one embodiment, each set of top support rods 606 is further fixedly provided with a ring seat 607. The upper part of each set of ring seats 607 is connected to the bottom of the corresponding positioning block 20 through a set of third elastic members 608. The third elastic members 608 are used to provide support for the top support rods 606. The clamping block 50 is also connected to the inner wall of the cavity 201 through a second elastic member 501. The second elastic member 501 is used to provide elastic tension to the clamping block 50.

[0024] After the metal part is processed, the operator rotates the screw 601 in the reverse direction. Through the reverse thread engagement between the screw 601 and the corresponding sleeve 603, the top support plate 602 moves downward. When the top support plate 602 moves downward, the third elastic element 608 pushes the ring seat 607, which in turn pushes the top support rod 606 downward, thus resetting the top support rod 606. When the top support rod 606 moves downward, the second elastic element 501 pulls the clamping block 50, causing the clamping block 50 to move into the cavity 201, thus resetting the clamping block 50. After the clamping block 50 is reset, the operator rotates the drive shaft 401 in the reverse direction. Through the reverse thread engagement between the two sets of threaded sections 402 and the two sets of support plates 404, the two sets of support plates 404 move away from each other. Then, through the pull of several first elastic elements 301, several positioning blocks 20 are pulled away from each other, causing the two rows of positioning blocks 2 to move away from each other. Finally, the processed metal part can be removed from the top of the positioning table 10.

[0025] In one embodiment, handwheels are fixedly provided at both the end of the drive shaft 401 and the end of the screw 601, so that the drive shaft 401 and the screw 601 can be rotated.

[0026] In one embodiment, the first elastic element 301, the second elastic element 501, and the third elastic element 608 can be springs or metal sheets, and there is no limitation here.

[0027] In this embodiment of the invention, when clamping and positioning a metal part to be processed, the metal part can be placed on the upper part of the positioning stage 10 and positioned between two rows of positioning blocks 20. Then, the first driving component 40 drives the two rows of positioning blocks 20 to move towards each other. If the sidewall of the metal part to be processed is planar, the two rows of positioning blocks 20 can act synchronously on the planar sidewall of the metal part. After the two rows of positioning blocks 20 act on the sidewall of the metal part, the second driving component 60 drives a number of clamping blocks 50 to move, so that the number of clamping blocks 50 moves out of the corresponding cavity 201. The moved-out number of clamping blocks 50 act on the planar sidewall of the metal part, realizing the opposing clamping of the metal part with a planar sidewall. If the sidewall of the metal part to be processed has an irregular structure, the positioning blocks 20 in the same row will act on the irregular sidewall of the metal part in turn. The elastic support component 30 will retract adaptively until all the positioning blocks 20 in both rows act on the irregular sidewall of the metal part. Then, the second drive component 60 will drive the clamping blocks 50 to move so that the clamping blocks 50 are removed from the corresponding cavity 201. The removed clamping blocks 50 act on the irregular sidewall of the metal part to achieve opposing clamping and positioning of the metal part with an irregular sidewall. Compared with the prior art, it can effectively clamp and position metal parts with irregular sidewalls, and has the advantages of good clamping and positioning effect and firm and reliable positioning.

[0028] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A positioning device for machining metal parts, characterized in that, It includes a positioning stage, a positioning block, an elastic support assembly, a first drive assembly, a clamping block, and a second drive assembly. The positioning blocks are provided in several groups, and each group of positioning blocks has a cavity inside. The positioning blocks are arranged in two rows, and the two rows of positioning blocks are distributed opposite each other on the upper part of the positioning platform. The first driving component is mounted on the upper part of the positioning platform. Both rows of positioning blocks are connected to the first driving component through the elastic support component. The first driving component is used to drive the elastic support component to move towards each other, thereby driving the two rows of positioning blocks to move towards each other, so that the two rows of positioning blocks respectively contact the opposite sides of the metal part. The clamping blocks are provided in several groups, and each group of positioning blocks has a set of clamping blocks in the cavity inside. The second drive component is located at the bottom of the positioning platform. When the two rows of positioning blocks act on the opposite sides of the metal part, the second drive component drives several clamping blocks to move out from the corresponding cavity to clamp the metal part in opposite directions.

2. The positioning device for metal part processing according to claim 1, characterized in that, The first drive assembly includes a drive shaft, a first guide rod, and a support plate. The support plate is provided in two sets, which are respectively arranged on the opposite sides of the two rows of positioning blocks. The drive shaft is opposite to and parallel to the first guide rod. Both the drive shaft and the first guide rod are rotatably mounted on the upper part of the positioning platform via support seats. The drive shaft and the first guide rod pass through the two sets of support plates, and the first guide rod is movably engaged with the two sets of support plates. The drive shaft has two sets of threaded sections with opposite directions on its exterior, and the drive shaft engages with the two sets of support plates through these threaded sections. The elastic support assembly includes several first elastic elements and several support rods. Each group of positioning blocks is fixedly provided with a set of support rods on one side. The ends of several support rods away from the corresponding positioning blocks pass through the support plate and are movably engaged with the support plate. Each group of support rods is fitted with a set of first elastic members. One end of the first elastic member is connected to the corresponding positioning block, and the other end is connected to the support plate, which is used to provide elastic support for the positioning block.

3. The positioning device for metal part processing according to claim 2, characterized in that, The positioning platform has a slot, and one side of the clamping block has an inclined surface. The second drive assembly includes a screw, a top support plate, a sleeve, a second guide rod, and a top support rod. Several sets of top support rods are provided, each corresponding to one of the positioning blocks. The upper end of each set of top support rods extends from the bottom of the corresponding positioning block to the interior of the corresponding cavity, and the lower end of each set of top support rods extends from the slot to below the positioning platform. A set of bases is fixedly installed at the lower end of each set of top support rods. The top support plate is located below the positioning platform. Several sets of sleeves are provided, and several sleeves are fixedly installed on the side wall of the top support plate. The screw vertically penetrates one of the sets of sleeves and is threadedly engaged with the set of sleeves. The upper end of the screw penetrates the positioning platform and extends above the positioning platform. The screw is rotatably engaged with the positioning platform. The upper end of the second guide rod is fixedly connected to the bottom of the positioning platform, and the lower end vertically penetrates the other sleeve and is movably engaged with the sleeve.

4. A positioning device for metal part processing according to claim 3, characterized in that, Both the upper surface of the top support plate and the lower surface of the base are provided with a frosted surface.

5. A positioning device for metal part processing according to claim 3, characterized in that, Each set of top support rods is also fixedly provided with a ring seat on the outside. The upper part of each set of ring seats is connected to the bottom of the corresponding positioning block through a set of third elastic elements. The third elastic elements are used to provide support for the top support rod. The clamping block is also connected to the inner wall of the cavity by a second elastic element, which provides elastic tension to the clamping block.

6. A positioning device for metal part processing according to claim 2, characterized in that, Handwheels are fixedly installed at both the end of the drive shaft and the end of the screw.

7. A positioning device for metal part processing according to claim 5, characterized in that, The first elastic element, the second elastic element, and the third elastic element are springs or metal sheets.

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