Clamping device

Abstract

The utility model relates to the technical field of die clamping tools, in particular to a clamping device. Comprising a rotating mechanism, a rotating table and a bench clamp, the rotating table is mounted on the rotating mechanism, and the rotating mechanism drives the rotating table to rotate; and the bench clamp is mounted on the rotating table. The clamping device provided by the utility model is arranged on the three-axis machine, and the existing milling machine does not need to be replaced, so that the production cost is reduced; according to the utility model, the bench clamp is used for clamping a workpiece, and the rotating mechanism is used for driving the whole rotating table to rotate, so that the workpiece can be machined at all angles, and the machining precision of the workpiece is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mold clamping tools, and more specifically, to a clamping device. Background Art

[0002] The processing of the inclined guide post hole of the mold is an essential process in mold manufacturing. At present, it mainly relies on manual processing on ordinary milling machines. The process is arduous and the accuracy often fails to meet the requirements. The current five-axis machine on the market is more than 10 times the price of the three-axis machine with the same processing range. The cost is expensive, and the 4-axis head has less force and cannot process larger inclined guide post holes. The cost is also about 5 times that of the three-axis machine, which is not suitable for current processing requirements and cost control requirements. Utility Model Content

[0003] In order to overcome the defects in the prior art, the utility model provides a clamping device, which can effectively reduce production costs and improve the processing accuracy of workpieces.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0005] A clamping device comprises a rotating mechanism, a rotating table, and a vise; the rotating table is installed on the rotating mechanism, and the rotating mechanism drives the rotating table to rotate; the vise is installed on the rotating table.

[0006] According to the above technical scheme, the clamping device provided by the utility model is installed on a three-axis machine, and there is no need to replace the existing milling machine, thereby reducing production costs; in the utility model, the workpiece is clamped by a vise, and the entire rotary table is driven to rotate by a rotating mechanism, thereby realizing processing of various angles of the workpiece and improving the processing accuracy of the workpiece.

[0007] In one embodiment, the bench vise includes a base, a screw, a first pliers body, a second pliers body and a handwheel; the screw is rotatably mounted on the base, one end of the screw is provided with a first threaded structure, and the other end is provided with a second threaded structure with a rotation direction opposite to the first threaded structure; the first pliers body and the second pliers body are both threadedly connected to the screw, and the first pliers body is connected to the first threaded structure, and the second pliers body is connected to the second threaded structure; the handwheel is connected to one end of the screw, and the screw is rotated to drive the first pliers body and the second pliers body to move toward or away from each other.

[0008] In one embodiment, it also includes a center positioning block, which is inserted into the screw rod and fixedly connected to the base; the center positioning block is located between the first threaded structure and the second threaded structure; the center positioning block and the first pliers body form a first clamping part, the center positioning block and the second pliers body form a second clamping part, and the first pliers body and the second pliers body form a third clamping part. The bench vise is provided with multiple clamping parts, which can clamp workpieces of different sizes and specifications respectively. The center positioning block also plays a role in center positioning, so that each workpiece is finally clamped with the center positioning block as the reference point, which reduces the time for positioning each workpiece and improves work efficiency; during processing, the workpiece can be clamped between the first pliers body and the center positioning block, and between the second pliers body and the center positioning block at the same time. When a large workpiece needs to be processed to process a larger inclined guide column hole, the workpiece can be clamped between the first pliers body and the second pliers body; through the clamping device provided by the utility model, it is possible to realize the processing of holes of any angle or shape of workpieces on a three-axis CNC machine tool.

[0009] In one embodiment, a first step is provided at one end of the first clamp body located at the center positioning block, and a second step corresponding to the position of the first step is provided at one end of the first clamp body located at the center positioning block, and the first step and the second step together constitute the clamping position of the first clamping part. The first step and the second step play a role of limiting and positioning, so as to facilitate better, faster and more accurate clamping of the workpiece on the first clamping part.

[0010] In one embodiment, a third step is provided at one end of the second clamp body located at the center positioning block, and a fourth step corresponding to the position of the third step is provided at one end of the second clamp body located at the center positioning block, and the third step and the fourth step together constitute the clamping position of the second clamping part. The third step and the fourth step also play a role of limiting and positioning, so as to facilitate better, faster and more accurate clamping of the workpiece on the second clamping part.

[0011] In one embodiment, a fifth step is provided at one end of the first clamp body away from the central positioning block, and the fifth step is higher than the first step; a sixth step is provided at one end of the second clamp body away from the central positioning block, and the sixth step is higher than the third step; the fifth step and the sixth step together constitute the clamping position of the third clamping part. The fifth step and the sixth step are respectively higher than the first step and the third step, so that when clamping a large workpiece, the first step and the third step will not affect the positioning and clamping of the workpiece.

[0012] In one embodiment, the first step and the second step are on the same horizontal plane; the third step and the fourth step are on the same horizontal plane; the fifth step and the sixth step are on the same horizontal plane. This arrangement can ensure that the workpiece will not tilt during clamping, and can more accurately position and clamp the workpiece, thereby improving the processing accuracy of the workpiece.

[0013] In one embodiment, the height of the center positioning block is not higher than the height of the first clamp body and the second clamp body, so as to avoid the center positioning block being too high and affecting the clamping of the third clamping part.

[0014] In one embodiment, two bench vises are provided, and the two bench vises are spaced apart and arranged in parallel on the rotating table. Two bench vises are provided so that more workpieces can be clamped at the same time, and the two bench vises can be clamped together to clamp large workpieces more stably.

[0015] In one embodiment, the rotating mechanism includes a support frame and a motor; both ends of the rotating table are rotatably connected to the support frame via a rotating shaft, and the output shaft of the motor is connected to the rotating shaft, and the motor rotates to drive the rotating table to rotate.

[0016] The clamping device provided by the utility model completes processing on a three-axis machine tool. By utilizing center positioning to cooperate with the first clamp body and the second clamp body, not only can a plurality of workpieces be clamped at the same time, but also pre-processing operations such as center dragging and the like are unnecessary. The rotary table is driven to rotate by a rotary mechanism, thereby realizing processing of inclined guide columns at various angles, thereby reducing the labor intensity of employees, improving the processing accuracy of workpieces, and improving the assembly efficiency of molds at a low cost.

[0017] Compared with the prior art, the beneficial effects are: a clamping device provided by the utility model can be installed on a three-axis machine, and there is no need to replace the existing milling machine, thereby reducing production costs; the workpiece is clamped by a vise, and the entire rotary table is driven to rotate by a rotating mechanism, thereby realizing processing of various angles of the workpiece and improving the processing accuracy of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model when clamping a small workpiece.

[0019] Figure 2 It is a structural schematic diagram of the utility model when clamping a large workpiece.

[0020] Figure 3 It is a structural schematic diagram of a bench clamp of the utility model.

[0021] Figure 4 The utility model is a structural schematic diagram of a bench vise for clamping a small workpiece.

[0022] Figure 5 The utility model is a structural schematic diagram of a bench vise for clamping a large workpiece.

[0023] Figure numerals: 1. rotating mechanism; 2. rotating table; 3. bench vise; 31. base; 32. screw rod; 33. first clamp body; 331. first step; 332. fifth step; 34. second clamp body; 341. third step; 342. sixth step; 35. center positioning block; 351. second step; 352. fourth step; 4. workpiece. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The utility model is described in one of the embodiments in combination with the specific implementation methods. Among them, the drawings are only used for exemplary descriptions, and only schematic diagrams are shown, not physical drawings, and cannot be understood as limitations on this patent; in order to better illustrate the embodiments of the utility model, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0025] In the description of the present utility model, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for the convenience of describing the present utility model 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. Therefore, the terms describing the positional relationship in the drawings are only used for exemplary explanations and cannot be understood as a limitation of this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances. In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text is to include three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or schemes that satisfy both A and B.

[0026] Embodiment 1:

[0027] like Figures 1 to 5As shown, a clamping device includes a rotating mechanism 1, a rotating table 2, and a vise 3; the rotating table 2 is installed on the rotating mechanism 1, and the rotating mechanism 1 drives the rotating table 2 to rotate; the vise 3 is installed on the rotating table 2.

[0028] According to the above technical scheme, the clamping device provided by the utility model is installed on a three-axis machine, and there is no need to replace the existing milling machine, thereby reducing the production cost; in the utility model, the workpiece 4 is clamped by the vise 3, and the entire rotary table 2 is driven to rotate by the rotating mechanism 1, thereby realizing the processing of various angles of the workpiece 4, and improving the processing accuracy of the workpiece 4.

[0029] like Figures 1 to 5 As shown, the bench vise 3 includes a base 31, a screw rod 32, a first pliers body 33, a second pliers body 34 and a handwheel; the screw rod 32 is rotatably mounted on the base 31, one end of the screw rod 32 is provided with a first threaded structure, and the other end is provided with a second threaded structure with a rotation direction opposite to the first threaded structure; the first pliers body 33 and the second pliers body 34 are both threadedly connected to the screw rod 32, and the first pliers body 33 is connected to the first threaded structure, and the second pliers body 34 is connected to the second threaded structure; the handwheel is connected to one end of the screw rod 32, and the screw rod 32 is rotated to drive the first pliers body 33 and the second pliers body 34 to move toward or away from each other.

[0030] like Figure 1 and Figure 2 As shown, it also includes a center positioning block 35, which is inserted into the screw rod 32 and fixedly connected to the base 31; the center positioning block 35 is located between the first thread structure and the second thread structure; the center positioning block 35 and the first pliers body 33 form a first clamping part, the center positioning block and the second pliers body 34 form a second clamping part, and the first pliers body 33 and the second pliers body 34 form a third clamping part. The bench vise 3 is provided with multiple clamping parts, which can clamp workpieces 4 of different sizes. The center positioning block 35 also plays a role in center positioning, so that each workpiece 4 is finally clamped with the center positioning block 35 as the reference point, which reduces the positioning time of each workpiece 4 and improves work efficiency; during processing, the workpiece 4 can be clamped simultaneously between the first clamp body 33 and the center positioning block 35, and between the second clamp body 34 and the center positioning block 35. When a large workpiece 4 needs to be processed to process a larger inclined guide column hole, the workpiece 4 can be clamped between the first clamp body 33 and the second clamp body 34; through the clamping device provided by the utility model, it is possible to realize the processing of holes of any angle or shape of workpieces 4 on a three-axis CNC machine tool.

[0031] like Figure 3As shown, the first clamp body 33 is provided with a first step 331 at one end of the center positioning block 35, and the center positioning block 35 is provided with a second step 351 corresponding to the position of the first step 331 at one end of the first clamp body 33, and the first step 331 and the second step 351 together constitute the clamping position of the first clamping part. The first step 331 and the second step 351 play a role of limiting and positioning, so as to facilitate better, faster and more accurate clamping of the workpiece 4 on the first clamping part.

[0032] like Figure 3 As shown, the second clamp body 34 is provided with a third step 341 at one end of the center positioning block 35, and the center positioning block 35 is provided with a fourth step 352 corresponding to the position of the third step 341 at one end of the second clamp body 34, and the third step 341 and the fourth step 352 together constitute the clamping position of the second clamping part. The third step 341 and the fourth step 352 also play a role of limiting and positioning, so as to facilitate better, faster and more accurate clamping of the workpiece 4 on the second clamping part.

[0033] like Figure 3 As shown, the end of the first clamp body 33 away from the center positioning block 35 is provided with a fifth step 332, and the fifth step 332 is higher than the first step 331; the end of the second clamp body 34 away from the center positioning block 35 is provided with a sixth step 342, and the sixth step 342 is higher than the third step 341; the fifth step 332 and the sixth step 342 together constitute the clamping position of the third clamping part. The fifth step 332 and the sixth step 342 are respectively higher than the first step 331 and the third step 341, so that when clamping a large workpiece 4, the first step 331 and the third step 341 will not affect the positioning and clamping of the workpiece 4.

[0034] Wherein, the rotating mechanism 1 includes a support frame and a motor; both ends of the rotating platform are rotatably connected to the support frame through a rotating shaft, and the output shaft of the motor is connected to the rotating shaft. The motor rotates to drive the rotating platform 2 to rotate.

[0035] The fixture clamping device provided by the utility model completes processing on a three-axis machine tool. By utilizing center positioning to cooperate with the first clamp body 33 and the second clamp body 34, it is not only possible to clamp multiple workpieces 4 at the same time, but also does not require pre-processing operations such as centering and dragging the table. The rotating mechanism 1 is used to drive the rotating table 2 to rotate, thereby realizing the processing of inclined guide columns at various angles, thereby using low cost to reduce the labor intensity of employees, improve the processing accuracy of the workpiece 4, and improve the assembly efficiency of the mold.

[0036] Example 2

[0037] This embodiment is the same as the embodiment 1 in other structures, except that, in this embodiment, two bench vises 3 are provided, and the two bench vises 3 are provided on the rotating table 2 in parallel and at intervals. By providing two bench vises 3, more workpieces 4 can be clamped at the same time, and the two bench vises 3 can clamp large workpieces 4 more stably.

[0038] Example 3

[0039] The other structures of this embodiment are the same as those of embodiment 1. In this embodiment, Figures 3 to 5 As shown, the first step 331 and the second step 351 are on the same horizontal plane; the third step 341 and the fourth step 352 are on the same horizontal plane; the fifth step 332 and the sixth step 342 are on the same horizontal plane. This arrangement can ensure that the workpiece 4 will not tilt during clamping, and can more accurately position and clamp the workpiece 4, thereby improving the processing accuracy of the workpiece 4.

[0040] The height of the center positioning block 35 is not higher than the height of the first clamp body 33 and the second clamp body 34. It is prevented that the center positioning block 35 is too high to affect the clamping of the third clamping part.

[0041] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0042] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not intended to limit the implementation methods of the utility model. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A clamping device, characterized in that: The invention comprises a rotating mechanism (1), a rotating table (2), and a bench clamp (3); the rotating table (2) is mounted on the rotating mechanism (1), and the rotating mechanism (1) drives the rotating table (2) to rotate; the bench clamp (3) is mounted on the rotating table (2); the bench clamp (3) comprises a base (31), a screw rod (32), a first clamp body (33), a second clamp body (34), and a hand wheel; the screw rod (32) is rotatably mounted on the base (31), one end of the screw rod (32) is provided with a first thread structure, and the other end is provided with a second thread structure with a rotation direction opposite to the first thread structure; the first clamp body (33) and the second clamp body (34) are both threadedly connected to the screw rod (32), and the first clamp body (33) is connected to the first thread structure. The first pliers (33) and the second pliers (34) are connected to each other with a first threaded structure, and the second pliers (34) are connected to the second threaded structure; the hand wheel is connected to one end of the screw rod (32), and the screw rod (32) is rotated to drive the first pliers (33) and the second pliers (34) to move toward or away from each other; it also includes a center positioning block (35), the center positioning block (35) is passed through the screw rod (32) and is fixedly connected to the base (31); the center positioning block (35) is located between the first threaded structure and the second threaded structure; a first clamping portion is formed between the center positioning block (35) and the first pliers (33), a second clamping portion is formed between the center positioning block (35) and the second pliers (34), and a third clamping portion is formed between the first pliers (33) and the second pliers (34).

2. The clamping device according to claim 1, characterized in that: A first step (331) is provided at one end of the first clamp body (33) located at the center positioning block (35), and a second step (351) corresponding to the position of the first step (331) is provided at one end of the first clamp body (33) located at the center positioning block (35), and the first step (331) and the second step (351) together constitute the clamping position of the first clamping portion.

3. The clamping device according to claim 2, characterized in that: A third step (341) is provided at one end of the second clamp body (34) located at the center positioning block (35), and a fourth step (352) corresponding to the position of the third step (341) is provided at one end of the second clamp body (34) located at the center positioning block (35), and the third step (341) and the fourth step (352) together constitute the clamping position of the second clamping portion.

4. The clamping device according to claim 3, characterized in that: A fifth step (332) is provided at one end of the first clamp body (33) away from the center positioning block (35), and the fifth step (332) is higher than the first step (331); a sixth step (342) is provided at one end of the second clamp body (34) away from the center positioning block (35), and the sixth step (342) is higher than the third step (341); the fifth step (332) and the sixth step (342) together constitute the clamping position of the third clamping portion.

5. The clamping device according to claim 4, characterized in that: The surfaces of the first step (331) and the second step (351) are on the same horizontal plane; the surfaces of the third step (341) and the fourth step (352) are on the same horizontal plane; and the surfaces of the fifth step (332) and the sixth step (342) are on the same horizontal plane.

6. The clamping device according to claim 5, characterized in that: The height of the central positioning block (35) is not higher than the heights of the first clamp body (33) and the second clamp body (34).

7. The clamping device according to any one of claims 1 to 6, characterized in that: Two bench clamps (3) are provided, and the two bench clamps (3) are arranged on the rotating table (2) at an interval and in parallel.

8. The clamping device according to any one of claims 1 to 6, characterized in that: The rotating mechanism (1) comprises a support frame and a motor; the two ends of the rotating platform (2) are rotatably connected to the support frame via rotating shafts, and the output shaft of the motor is connected to the rotating shaft. The motor rotates to drive the rotating platform (2) to rotate.

Images