Fixing clamp for machining spare and accessory parts

Abstract

The utility model relates to the field of fixing clamps for part machining, in particular to a fixing clamp for part machining, which comprises a fixing base, the inner wall of the fixing base is rotatably connected with a two-way screw rod, and a second arc-shaped clamping plate is in contact with the outer surface of a workpiece through opposite movement of a supporting plate. Then, the second arc-shaped clamping plates and the first arc-shaped clamping plates slide on the corresponding first arc-shaped clamping plates and the corresponding supporting blocks according to the appearances of different workpieces, so that the second arc-shaped clamping plates can be attached to the workpieces; when the workpiece is clamped, first connecting rods can slide relative to the corresponding supporting plates, at the moment, corresponding first springs start to be compressed, the clamping force of second arc-shaped clamping plates and the workpiece is gradually increased, and then the effect that the device can conduct auxiliary clamping on workpieces of different shapes through position adjustment of the first arc-shaped clamping plates and the second arc-shaped clamping plates is achieved.

Description

Technical Field

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

[0002] A fixture is a device used to fix the processing object in the mechanical manufacturing process so that it occupies the correct position to accept construction or inspection. It is also called a fixture. In a broad sense, any device used to quickly, conveniently and safely install the workpiece in any process in the process can be called a fixture. For example, welding fixtures, inspection fixtures, assembly fixtures, machine tool fixtures, etc., among which machine tool fixtures are the most common and are often referred to as fixtures. When processing a workpiece on a machine tool, in order to make the surface of the workpiece meet the technical requirements such as the size, geometry and relative position accuracy with other surfaces specified in the drawings, the workpiece must be installed (positioned) and clamped (clamped) before processing. A fixture usually consists of a positioning element (to determine the correct position of the workpiece in the fixture), a clamping device, a tool guiding element (to determine the relative position of the tool and the workpiece or to guide the direction of the tool), a dividing device (to enable the workpiece to complete the processing of several stations in one installation, there are two types of rotary dividing devices and linear moving dividing devices), connecting elements and a fixture base (fixture base), etc. One of the common fixtures is a fixture for grinding.

[0003] After searching, a Chinese patent with publication number CN219465961 U discloses a fixture for processing furniture parts and components, which solves the problem that furniture parts and components need to be processed in various ways before they are formed, such as bending or deburring. Furniture parts and components need to be fixed during the processing. With the rapid development of modern science and technology, furniture parts and components have become diversified and have different shapes. There are also parts and components whose surfaces are not flat and have a certain curvature. Therefore, it is more complicated to fix those special-shaped furniture parts and components. However, this device cannot perform auxiliary clamping according to workpieces of different shapes. During the clamping and processing of workpieces of different shapes, the workpiece has no auxiliary clamping in other directions, which can easily cause the workpiece to shift during the processing, resulting in damage to the workpiece and affecting its use. In addition, this device does not have a positioning mechanism, and large-scale processing requires repeated adjustments, which wastes time.

[0004] Therefore, a new solution needs to be proposed to solve this problem. Utility Model Content

[0005] In view of the above background technology, the prior art has the problem that it is unable to assist in clamping workpieces with different shapes.

[0006] The utility model discloses a fixing fixture for processing spare parts, comprising a fixing base, an inner wall of the fixing base being rotatably connected with a bidirectional screw, one end of the bidirectional screw being fixedly connected with a rotating wheel, an outer surface of the bidirectional screw being threadedly connected with two connecting plates, two connecting plates being fixedly connected with supporting plates on one side close to each other, an outer surface of each connecting plate being slidably connected with the fixing base, a bottom surface of each supporting plate being slidably connected with the fixing base, and two supporting plates being fixedly connected with a clamping plate on one side close to each other.

[0007] By adopting the above scheme, the rotating wheel will drive the bidirectional screw to rotate, and the rotation of the bidirectional screw will drive the two connecting plates to move horizontally opposite or oppositely along the outer surface of the bidirectional screw at the same time. At this time, the two support plates will move horizontally opposite or oppositely along the upper surface of the fixed base at the same time until the clamping plate and the workpiece are tightly clamped and stop.

[0008] Optionally, the inner wall of each support plate is slidably connected to two first connecting rods, and one end of each first connecting rod close to another support plate is fixedly connected to a support block, and the outer surface of each first connecting rod is sleeved with a first spring, and one end of each first spring is fixedly connected to the corresponding support plate, and the other end is fixedly connected to the corresponding support block.

[0009] By adopting the above solution, the first connecting rod can slide horizontally along the corresponding support plate. When the first connecting rod slides, the corresponding first spring begins to compress, and when there is no external force acting on the first connecting rod, the first spring pushes the corresponding support block under the action of its rebound force to drive the first connecting rod to reset.

[0010] Furthermore, the inner wall of each support block is slidably connected to a first arc-shaped clamping plate, the inner wall of each first arc-shaped clamping plate is slidably connected to two second arc-shaped clamping plates, and the outer surface of each first arc-shaped clamping plate and second arc-shaped clamping plate is slidably connected to the clamping plate.

[0011] By adopting the above scheme, during the process of the support plates moving towards each other, the second arc-shaped clamping plate will first contact the workpiece, and according to the shape of different workpieces, the second arc-shaped clamping plate will slide along the corresponding first arc-shaped clamping plate. During the continuous extrusion process, the first arc-shaped clamping plate will slide along the corresponding support block to clamp different workpieces. During the continuous extrusion of the support plates, the first spring will be continuously compressed, and the first connecting rod will slide relatively along the corresponding support plate until the clamping plate tightly clamps the workpiece.

[0012] Furthermore, a fixing plate is fixedly connected to the upper surface of the fixing base, and a positioning groove and a sliding groove are provided on the upper surface of the fixing plate.

[0013] By adopting the above solution, the fixed plate is located on the center line of the fixed base, and the positioning groove is located at the center of the fixed plate, which can locate the position of the workpiece, and the slide groove is located on the center line of the fixed plate.

[0014] Furthermore, two brackets are fixedly connected to the upper surface of the fixing plate, and the inner wall of each bracket is slidably connected to a second connecting rod.

[0015] By adopting the above solution, the brackets are located at both ends of the fixing plate, the brackets are supporting mechanisms of the corresponding second connecting rods, and the second connecting rods can move horizontally along the corresponding brackets.

[0016] Furthermore, the ends of the two second connecting rods that are close to each other are fixedly connected with a push plate, and the outer surface of each push plate is slidably connected to the sliding groove.

[0017] By adopting the above solution, the push plate can push the workpiece so that the workpiece can be fixed at the center position of the fixed plate.

[0018] Furthermore, a second spring is sleeved on the outer surface of each second connecting rod, and ends of the two second springs close to each other are fixedly connected to the corresponding push plates, and ends of the two second springs away from each other are fixedly connected to the corresponding brackets.

[0019] By adopting the above solution, the push plate will contact workpieces of different sizes, and through different degrees of compression of the second spring, the second spring pushes the corresponding push plate to squeeze and fix the workpiece.

[0020] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0021] 1. The utility model provides a support plate, a first connecting rod, a first spring, a support block, a first arc-shaped clamping plate, a second arc-shaped clamping plate and other components, and the second arc-shaped clamping plate is brought into contact with the outer surface of the workpiece through the relative movement of the support plate, and then the second arc-shaped clamping plate and the first arc-shaped clamping plate will slide on the corresponding first arc-shaped clamping plate and the corresponding support block according to the shape of different workpieces, so that the second arc-shaped clamping plate can be fitted with the workpiece, and then during the continuous extrusion of the support plate, the first connecting rod will slide relative to the corresponding support plate, at this time the corresponding first spring begins to compress, and the clamping force of the second arc-shaped clamping plate and the workpiece gradually increases, thereby achieving the effect that the device can assist in clamping workpieces of different shapes by adjusting the positions of the first arc-shaped clamping plate and the second arc-shaped clamping plate.

[0022] 2. The utility model sets a fixed plate, a slide groove, a positioning groove, a bracket, a second connecting rod, a second spring, a push plate and other components. The rebound force of the second spring acts on the corresponding push plate, so that the push plate contacts and squeezes workpieces of different sizes. The push plate slides in the slide groove, so that the same thrust can be applied to both sides of the workpiece on the fixed plate, so that the workpiece is in the middle of the fixed plate, thereby achieving the effect that the device can position and clamp the workpiece through the push plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0024] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0025] Figure 2 This is a schematic diagram of the bidirectional screw structure of the utility model;

[0026] Figure 3 This is a schematic diagram of the structure of the first arc-shaped clamping plate of the utility model;

[0027] Figure 4 This is a schematic diagram of the fixed plate structure of the utility model.

[0028] In the figure: 1. fixed base; 2. bidirectional screw; 3. rotating wheel; 4. connecting plate; 5. supporting plate; 6. positioning groove; 7. first connecting rod; 8. first spring; 9. supporting block; 10. first arc-shaped clamping plate; 11. second arc-shaped clamping plate; 12. clamping plate; 13. bracket; 14. second connecting rod; 15. second spring; 16. push plate; 17. slide groove; 18. fixed plate. DETAILED DESCRIPTION

[0029] The following will disclose multiple embodiments of the utility model with diagrams. For the purpose of clear description, many physical details will be described together in the following description. However, it should be understood that these physical details should not be used to limit the utility model. In other words, in some embodiments of the utility model, these physical details are not necessary. In addition, for the purpose of simplifying the diagram, some conventional structures and components will be depicted in a simple schematic manner in the diagram.

[0030] See also Figure 1 , Figure 2 , Figure 3The two ends of the support 2 are connected with the support wheel 3, and the two ends of the support 2 are connected with the support wheel 3, and the two ends of the support 2 are connected with the support wheel 3. When the wheel 3 is rotated, the wheel 3 drives the two-way screw 2 to rotate. The outer surface of the two-way screw 2 is threadedly connected with two connecting plates 4. Specifically, the two connecting plates 4 are at an equal distance from the dividing line of the two-way screw 2. The rotation of the two-way screw 2 drives the two connecting plates 4 to move horizontally opposite or in the opposite direction along the outer surface of the two-way screw 2 at the same time.

[0031] In this embodiment, the inner wall of each support plate 5 is slidably connected to two first connecting rods 7, and one end of each first connecting rod 7 close to the other support plate 5 is fixedly connected to a support block 9. The setting direction of the first connecting rod 7 is perpendicular to the corresponding support plate 5, and two placement grooves are provided on the side where the two support plates 5 are close to each other. The outer surface of each first connecting rod 7 is sleeved with a first spring 8, one end of each first spring 8 is fixedly connected to the corresponding support plate 5, and each first spring 8 is placed in the corresponding placement groove, and the other end is fixedly connected to the corresponding support block 9. Specifically, the first connecting rod 7 can slide horizontally along the corresponding support plate 5. When the first connecting rod 7 slides, the corresponding first spring 8 begins to compress, and when no external force acts on the first connecting rod 7, the first spring 8 pushes the corresponding support block 9 under the action of its rebound force to drive the first connecting rod 7 to reset.

[0032] like Figure 1 , Figure 2As shown, the inner wall of each support block 9 is slidably connected with a first arc-shaped clamping plate 10, and the inner wall of each first arc-shaped clamping plate 10 is slidably connected with two second arc-shaped clamping plates 11, and the first arc-shaped clamping plate 10 and the second arc-shaped clamping plate 11 are both semicircular plates. The outer surface of each support block 9 is provided with a first T-shaped slot, and each first arc-shaped clamping plate 10 is slidably connected with the corresponding first T-shaped slot. The outer surface of each first arc-shaped clamping plate 10 is provided with a second T-shaped slot, and the outer surface of each second arc-shaped clamping plate 11 is slidably connected with the corresponding second T-shaped slot. The outer surfaces of the arc-shaped clamping plates 11 are slidably connected to the clamping plates 12. Specifically, during the opposite movement of the support plates 5, the second arc-shaped clamping plates 11 will first contact the workpiece, and according to the shapes of different workpieces, the second arc-shaped clamping plates 11 will slide along the corresponding first arc-shaped clamping plates 10. During the continuous extrusion process, the first arc-shaped clamping plates 10 will slide along the corresponding support blocks 9 to clamp different workpieces. During the continuous extrusion of the support plates 5, the first spring 8 will be continuously compressed, and the first connecting rod 7 will slide relatively along the corresponding support plates 5 until the clamping plates 12 tightly clamp the workpieces.

[0033] See also Figure 1 , Figure 4 A fixed plate 18 is fixedly connected to the upper surface of the fixed base 1, and a positioning groove 6 and a slide groove 17 are opened on the upper surface of the fixed plate 18. Specifically, the fixed plate 18 is located on the midline of the fixed base 1, and the positioning groove 6 is located at the center of the fixed plate 18, which can locate the position of the workpiece, and the slide groove 17 is located on the midline of the fixed plate 18.

[0034] In this embodiment, two brackets 13 are fixedly connected to the upper surface of the fixed plate 18. The bracket 13 is a support frame fixed on the fixed plate 18, and the distances between the two brackets 13 and the center line of the fixed plate 18 are equal. The inner wall of each bracket 13 is slidably connected to a second connecting rod 14. Specifically, the bracket 13 is a supporting mechanism for the corresponding second connecting rod 14, and the second connecting rod 14 can move horizontally along the corresponding bracket 13.

[0035] See again Figure 1 , Figure 4 The ends of the two second connecting rods 14 that are close to each other are fixedly connected with push plates 16, and the outer surface of each push plate 16 is slidably connected to the slide groove 17. Specifically, the push plate 16 can push the workpiece placed on the fixed plate 18, and thereby apply the same thrust to both sides of the workpiece, so that the workpiece can be fixed in the center position of the fixed plate 18.

[0036] In this embodiment, a second spring 15 is sleeved on the outer surface of each second connecting rod 14, and the ends of the two second springs 15 that are close to each other are fixedly connected to the corresponding push plates 16, and the ends of the two second springs 15 that are away from each other are fixedly connected to the corresponding brackets 13. Specifically, the push plate 16 is first pushed, and the workpiece is placed on the fixed plate 18, the second spring 15 begins to compress, and then the push plate 16 is released. The second spring 15 will push the corresponding push plate 16 under the action of its own rebound force and contact it according to workpieces of different sizes. When the push plate 16 contacts workpieces of different sizes, the second spring 15 will show different degrees of compression. At this time, the second connecting rod 14 will slide horizontally along the corresponding bracket 13, and the push plate 16 will slide in the slide groove 17.

[0037] The above is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A fixing fixture for processing spare parts, comprising a fixing base (1), characterized in that: The inner wall of the fixed base (1) is rotatably connected to a bidirectional screw (2), one end of the bidirectional screw (2) is fixedly connected to a rotating wheel (3), the outer surface of the bidirectional screw (2) is threadedly connected to two connecting plates (4), the two connecting plates (4) are fixedly connected to a support plate (5) on one side close to each other, the outer surface of each connecting plate (4) is slidably connected to the fixed base (1), the bottom surface of each support plate (5) is slidably connected to the fixed base (1), and the two support plates (5) are fixedly connected to a clamping plate (12) on one side close to each other.

2. A fixing fixture for processing spare parts according to claim 1, characterized in that: The inner wall of each support plate (5) is slidably connected to two first connecting rods (7), one end of each first connecting rod (7) close to another support plate (5) is fixedly connected to a support block (9), the outer surface of each first connecting rod (7) is sleeved with a first spring (8), one end of each first spring (8) is fixedly connected to the corresponding support plate (5), and the other end is fixedly connected to the corresponding support block (9).

3. A fixing fixture for processing spare parts according to claim 2, characterized in that: The inner wall of each support block (9) is slidably connected to a first arc-shaped clamping plate (10), the inner wall of each first arc-shaped clamping plate (10) is slidably connected to two second arc-shaped clamping plates (11), and the outer surface of each first arc-shaped clamping plate (10) and second arc-shaped clamping plate (11) is slidably connected to a clamping plate (12).

4. A fixing fixture for processing spare parts according to claim 1, characterized in that: A fixing plate (18) is fixedly connected to the upper surface of the fixing base (1), and a positioning groove (6) and a sliding groove (17) are provided on the upper surface of the fixing plate (18).

5. A fixing fixture for processing spare parts according to claim 4, characterized in that: Two brackets (13) are fixedly connected to the upper surface of the fixing plate (18), and the inner wall of each bracket (13) is slidably connected to a second connecting rod (14).

6. A fixing fixture for processing spare parts according to claim 5, characterized in that: One end of the two second connecting rods (14) close to each other is fixedly connected to a push plate (16), and the outer surface of each push plate (16) is slidably connected to a slide groove (17).

7. A fixing fixture for processing spare parts according to claim 6, characterized in that: The outer surface of each second connecting rod (14) is sleeved with a second spring (15); the ends of the two second springs (15) that are close to each other are fixedly connected to the corresponding push plate (16); and the ends of the two second springs (15) that are away from each other are fixedly connected to the corresponding bracket (13).

Images