Clamp for part machining

Abstract

The utility model relates to the technical field of part clamps, in particular to a part machining clamp which comprises a straight part clamping assembly for clamping flat parts, an arc part clamping assembly for clamping arc parts and a disassembling assembly for disassembling the clamp. The arc piece clamping assembly comprises a second threaded rod, a connecting rod, a clamping head, an elastic plate and a middle shaft. The second threaded rod is in threaded connection with the connecting rod, and the connecting rod is fixedly connected with the clamping head. According to the clamp for part machining, by rotating the handle connected to the second threaded rod, the connecting rod and the clamping head rotate along with the second threaded rod to move towards the straight part clamping assembly, meanwhile, the clamping head rotates along the second threaded rod, the connecting rod rotates along the middle shaft to be close to the second set of clamping heads, the two sets of clamping heads are in arc-shaped butt joint, and the clamping head is clamped in the second set of clamping heads. The arc-shaped sheet metal part is clamped in a self-adaptive mode, and the arc-shaped angle of the sheet metal part is prevented from changing.

Description

Technical Field

[0001] The utility model relates to the technical field of parts fixtures, in particular to a fixture for parts processing. Background Art

[0002] When processing sheet metal parts, they need to be clamped for subsequent polishing and finishing steps. Sheet metal parts are divided into curved sheet metal parts and square sheet metal parts. Curved sheet metal parts refer to parts with curved structures made by performing a series of cold working processes on metal sheets, especially bending forming. These parts are widely used in many fields such as industrial products, factory production equipment, food manufacturing equipment, etc., such as brackets, covers, chassis, guide rails and various box-shaped components, etc. Square sheet metal parts are a common part form in the metal processing field. They are made of metal sheets (such as stainless steel, aluminum plates, cold-rolled plates, hot-rolled plates, copper plates, etc.) through stamping, bending, welding, cutting and other processes, and have a square or rectangular outer contour. Square sheet metal parts are widely used in various industries, including but not limited to electronics, communications, automobiles, medical care, aerospace, construction and other fields.

[0003] To process straight sheet metal parts, it is only necessary to clamp them in the forward direction. However, it is difficult to clamp curved sheet metal parts vertically. The curvature of the sheet metal parts themselves does not change. When processing two different sheet metal parts, it is difficult to clamp and process them at the same time. At the same time, the equipment is too complicated and it is difficult for the staff to get started. It wastes time and cost to learn the operation process. At the same time, such staff are easy to replace and iterate, making the learning time even more difficult to calculate.

[0004] The utility model with application number CN202322467610.X discloses a fixture for parts processing, which is used in the field of fixtures, including a base, a threaded rod rotatably connected to the interior of the base through a bearing, and a base threadedly connected to the surface of the threaded rod, a through groove is provided on the top of the base, a clamping mechanism is provided on the top of the base, an installation groove is provided on the top of the base, an anti-collision frame is provided inside the installation groove, a buffer spring is bolted between the bottom of the anti-collision frame and the installation groove through a spring fixing sheet, and a damper is installed between the bottom of the anti-collision frame and the installation groove; it can have a falling buffer function, reduce the collision damage between parts and fixtures, and has high safety. At the same time, it can have a height adjustment function, which is simple and labor-saving to operate, can be flexibly adjusted according to the processing requirements of production equipment, and is highly practical.

[0005] This application protects parts by adding a drop buffer to reduce collision damage between parts and fixtures. However, it only clamps straight-plate parts and cannot effectively clamp curved plates. Forcibly clamping the curved plates may cause damage to the curved plates, which may easily lead to a low part yield rate.

[0006] Therefore, it is necessary to provide a new technical solution to overcome the above-mentioned defects. Utility Model Content

[0007] The purpose of the utility model is to provide a fixture for parts processing which can effectively solve the above technical problems.

[0008] In order to achieve the purpose of this utility model, the following technical solutions are adopted:

[0009] A fixture for parts processing, comprising: a straight part clamping assembly for clamping flat parts, a curved part clamping assembly for clamping curved parts, and a disassembly assembly for disassembling the fixture;

[0010] The arc piece clamping assembly includes a second threaded rod, a connecting rod, a clamping head, an elastic plate, and a central shaft; the second threaded rod is threadedly connected to the connecting rod, the connecting rod is fixedly connected to the clamping head, the connecting rod abuts against the elastic plate, and the central shaft is rotatably connected to the connecting rod;

[0011] The side of the clamping head is provided with a rack, and the clamping head is symmetrically provided with two groups along the central axis.

[0012] Furthermore, the disassembly assembly includes an arc-shaped clamping groove, a bolt member, and a fixing rod; the arc-shaped clamping groove is slidingly connected to the fixing rod, the bolt member is threadedly connected to the fixing rod, and the threaded rod is threadedly connected to the arc-shaped clamping groove.

[0013] Furthermore, the straight piece clamping assembly consists of a rotating handle, a first threaded rod, a pressing head, and a corrugated clamping plate; the rotating handle is fixedly connected to the first threaded rod, one end of the first threaded rod is fixedly connected to the pressing head, and the corrugated clamping plate is installed on one side of the fixed rod, and the waveform can contact the pressing head.

[0014] Furthermore, the surface of the pressing head is provided with teeth and grooves, and the surface of the corrugated clamping plate is also provided with teeth and grooves, and the two groups of teeth and grooves can mesh with each other.

[0015] Furthermore, a grinder is installed next to the arc-shaped clamping groove.

[0016] Furthermore, the second threaded rod is divided into two parts, one part is a threaded rod, and the other part is a round rod.

[0017] Compared with the prior art, the present invention has the following beneficial effects: the present invention is a fixture for parts processing, which rotates the handle connected to the second threaded rod so that the connecting rod and the locking head move toward the straight part locking assembly as the second threaded rod rotates. At the same time, the locking head rotates along the second threaded rod, so that the connecting rod rotates along the central axis and approaches the second group of locking heads, so that the two groups of locking heads are connected in an arc shape, and the arc-shaped sheet metal parts are adaptively clamped to prevent the arc angle of the sheet metal parts from changing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0019] Figure 1 This is a structural diagram of a fixture for parts processing according to the present invention;

[0020] Figure 2 This is a structural diagram of a fixture for parts processing according to the present invention;

[0021] Figure 3 This is an anatomical diagram of a fixture for parts processing according to the present invention.

[0022] In the figure: 1. Mounting plate; 2. Straight piece clamping assembly; 21. Rotating handle; 22. First threaded rod; 23. Pressing head; 24. Corrugated clamping plate; 3. Arc piece clamping assembly; 31. Second threaded rod; 32. Connecting rod; 33. Engaging head; 34. Elastic plate; 35. Central axis; 4. Disassembly assembly; 41. Arc-shaped clamping groove; 42. Bolt assembly; 43. Fixing rod; 5. Grinder. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the embodiments described are some embodiments of the present invention, not all embodiments.

[0024] In the description of the present invention, it should be understood that the terms "center", "transverse", "longitudinal", "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention. When a mechanism is referred to as being "fixed to" another mechanism, it may be directly on the other mechanism or there may also be a centered mechanism. When a mechanism is considered to be "connected to" another mechanism, it may be directly connected to the other mechanism or there may be a centered mechanism at the same time. When a mechanism is considered to be "set on" another mechanism, it may be directly set on the other mechanism or there may be a centered mechanism at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0025] like Figures 1 to 3 As shown, a fixture for processing parts includes: a straight part clamping component 2 for clamping flat parts, an arc part clamping component 3 for clamping arc parts, and a disassembly component 4 for disassembling the fixture.

[0026] In the automotive field, curved sheet metal parts are generally used in the fields of automobile shells, fuel tank caps, etc. When processing the fuel tank cap, the curved sheet metal parts need to be clamped. However, ordinary clamping alone can easily cause clamping damage to the curved sheet metal parts, making the curved sheet metal parts unsuitable for use in the fields in which they are used.

[0027] First, the ordinary straight sheet metal part is clamped by the straight piece clamping assembly 2, which consists of a rotating handle 21, a first threaded rod 22, a pressing head 23, and a corrugated clamping plate 24; the rotating handle 21 is fixedly connected to the first threaded rod 22, one end of the first threaded rod 22 is fixedly connected to the pressing head 23, and the corrugated clamping plate 24 is installed on one side of the fixed rod 43, and the corrugated shape can contact the pressing head 23; by rotating the rotating handle 21, the first screw rod is driven to rotate, and at the same time, the pressing head 23 connected thereto is pressed downward, thereby fixing the straight sheet metal part to prevent it from deflecting during processing, thereby indirectly preventing an increase in the rework rate of the workpiece;

[0028] The surface of the pressing head 23 is provided with teeth grooves, and the surface of the corrugated clamping plate 24 is also provided with teeth grooves, and the two sets of teeth grooves can engage with each other. At the same time, when the straight piece clamping assembly 2 is not working, the pressing head 23 and the corrugated clamping plate 24 can be engaged with each other to prevent floating dust particles in the factory from adhering to the pressing head 23, and at the same time prevent other people from accidentally operating the clamping hands and preventing workers from being injured.

[0029] Similarly, the arc-shaped sheet metal part is clamped by the arc-shaped clamping assembly 3, and the arc-shaped clamping assembly 3 includes a second threaded rod 31, a connecting rod 32, a clamping head 33, an elastic plate 34, and a central axis 35; the second threaded rod 31 is threadedly connected to the connecting rod 32, the connecting rod 32 is fixedly connected to the clamping head 33, the connecting rod 32 is in contact with the elastic plate 34, the central axis 35 is rotatably connected to the connecting rod 32, and a rack is provided on the side of the clamping head 33, and the clamping head There are two groups of symmetrically arranged 33 along the central axis 35, and the locking heads 33 are also arc-shaped; by rotating the handle connected to the second threaded rod 31, the connecting rod 32 and the locking heads 33 are moved toward the straight piece locking assembly as the second threaded rod 31 rotates, and at the same time, the locking heads 33 rotate along the second threaded rod 31, so that the connecting rod 32 rotates along the central axis 35 to approach the second group of locking heads 33, so that the two groups of locking heads 33 are connected in an arc shape, and the arc-shaped sheet metal parts are adaptively clamped to prevent the arc angle of the sheet metal parts from changing.

[0030] At the same time, the two sets of clamping components can also be used separately to prevent insufficient space resources from causing inconvenience in use, and it is also convenient for storage. The disassembly component 4 includes an arc-shaped clamping groove 41, a bolt member 42, and a fixing rod 43; the arc-shaped clamping groove 41 is slidingly connected to the fixing rod 43, the bolt member 42 is threadedly connected to the fixing rod 43, and the threaded rod is threadedly connected to the arc-shaped clamping groove 41; by rotating the bolt member 42, the arc-shaped clamping groove 41 and the fixing rod 43 are separated or tightened from each other, so that the two can work separately and can be stored separately, reducing waste of space resources.

[0031] Working principle:

[0032] By rotating the rotating handle 21, the first screw is driven to rotate, and the pressing head 23 connected to it is pressed downward to fix the straight sheet metal part to prevent it from being offset during processing, thereby indirectly preventing the rework rate of the workpiece from increasing. By rotating the handle connected to the second threaded rod 31, the connecting rod 32 and the locking head 33 are moved toward the straight piece locking assembly as the second threaded rod 31 rotates. At the same time, the locking head 33 rotates along the second threaded rod 31, causing the connecting rod 32 to rotate along the central axis 35 toward the second group of locking heads 33, so that the two groups of locking heads 33 are connected in an arc shape, and the arc sheet metal part is adaptively clamped to prevent the arc angle of the sheet metal part from changing. By rotating the bolt part 42, the arc clamping groove 41 and the fixing rod 43 are separated or tightened from each other, so that the two can work separately and can be stored separately, reducing waste of space resources.

[0033] At the same time, the grinder 5 can be used to grind and correct the edges and corners of the processed sheet metal parts to increase the work efficiency of the next polishing process.

[0034] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology. It will not be described in detail here. The content not described in detail in this specification belongs to the existing technology known to professional and technical personnel in this field.

[0035] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all such improvements and changes should fall within the scope of protection of the claims attached to this utility model.

Claims

1. A fixture for parts processing, characterized in that: include: Straight part clamping assembly for clamping flat parts, arc part clamping assembly for clamping arc parts, and disassembly assembly for disassembling fixtures; The arc piece clamping assembly includes a second threaded rod, a connecting rod, a clamping head, an elastic plate, and a central shaft; the second threaded rod is threadedly connected to the connecting rod, the connecting rod is fixedly connected to the clamping head, the connecting rod is fixedly connected to the elastic plate, and the central shaft is rotatably connected to the connecting rod; The side of the clamping head is provided with a rack, and the clamping head is symmetrically provided with two groups along the central axis.

2. A fixture for parts processing according to claim 1, characterized in that: The disassembly assembly includes an arc-shaped clamping groove, a bolt member, and a fixing rod; the arc-shaped clamping groove is slidably connected to the fixing rod, the bolt member is threadedly connected to the fixing rod, and the threaded rod is threadedly connected to the arc-shaped clamping groove.

3. A fixture for parts processing according to claim 2, characterized in that: The straight piece clamping assembly consists of a rotating handle, a first threaded rod, a pressing head, and a corrugated clamping plate; the rotating handle is fixedly connected to the first threaded rod, one end of the first threaded rod is fixedly connected to the pressing head, and the corrugated clamping plate is installed on one side of the fixed rod, and the corrugated shape can contact the pressing head.

4. A fixture for parts processing according to claim 3, characterized in that: The surface of the pressing head is provided with teeth grooves, and the surface of the corrugated clamping plate is also provided with teeth grooves, and the two groups of teeth grooves can mesh with each other.

5. A fixture for parts processing according to claim 4, characterized in that: A grinder is installed beside the arc-shaped clamping groove.

6. A fixture for parts processing according to claim 1, characterized in that: The second threaded rod is divided into two parts, one part is a threaded rod and the other part is a round rod.

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