Cross V-shaped block self-centering clamp
Self-positioning clamping is achieved through the longitudinal and transverse clamping mechanism of the cross V-block self-centering fixture, which solves the problem that traditional fixtures cannot adapt to changes in part dimension tolerances and improves machining accuracy and efficiency.
Patent Information
- Application Number
- CN202420832182.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-19
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-04-19
AI Technical Summary
Traditional fixture design cannot adapt to changes in part dimensional tolerances, resulting in inaccurate positioning of parts during processing, affecting machining accuracy and efficiency.
The cross V-block self-centering fixture is adopted to realize self-positioning clamping through longitudinal and transverse clamping mechanisms, which automatically adapts to the changes in the external dimensions of the parts.
Ensure the stability and consistency of parts in the fixture, improve processing accuracy, reduce adjustment time, and improve processing efficiency.
Smart Images
Figure CN222588862U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a cross V-block self-centering clamp and belongs to the technical field of mechanical manufacturing. Background Art
[0002] In the machinery manufacturing industry, the manufacturing process of forging and casting parts often leads to large dimensional tolerances of the parts due to factors such as material properties and process control. The existence of such dimensional tolerances makes it difficult to ensure the consistency of the position of each part during the subsequent processing, especially when positioning and installing it in the fixture. Traditional fixture designs are often unable to adapt to such dimensional changes, resulting in inaccurate positioning of parts in the fixture, which in turn affects the subsequent processing accuracy and efficiency.
[0003] Specifically, traditional fixture design is usually based on the standard size of the part, without fully considering the range of variation in the actual size of the part. When the actual size of the part deviates from the standard size, the fixture often cannot clamp effectively, or the clamping position is inaccurate, causing the part to move or deflect during processing, seriously affecting the processing quality.
[0004] In addition, the traditional clamp adjustment method is often cumbersome and time-consuming, requiring operators to manually adjust according to the actual size of the part, which not only increases the difficulty of operation but also reduces production efficiency. Therefore, developing a new type of clamp that can adapt to changes in part size tolerances and quickly position parts has become an urgent problem to be solved in the current mechanical manufacturing field. Utility Model Content
[0005] In order to solve the problems existing in the background technology, the utility model provides a cross V-block self-centering clamp.
[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a cross V-block self-centering clamp, comprising a clamping body, a mounting seat, a transverse clamping mechanism and a longitudinal clamping mechanism; the longitudinal clamping mechanism comprises a longitudinal V-block, a bidirectional screw and a screw support; the middle part of the upper surface of the clamping body is fixedly connected to the screw support, the screw support is rotatably connected to the middle part of the horizontally arranged bidirectional screw, the two sides of the bidirectional screw are respectively screwed with the corresponding longitudinal V-block threads, the V-shaped openings of the two longitudinal V-blocks are arranged opposite to each other, and the two longitudinal V-blocks are both slidably connected to the upper surface of the clamping body; a mounting seat is fixed to the upper end of the screw support, and the upper surface of the clamping body is also provided with a transverse clamping mechanism arranged in coordination with the longitudinal clamping mechanism.
[0007] The transverse clamping mechanism includes a positioning block, a transverse V-shaped block, a support and a clamping screw; one side of the upper surface of the clamp body is fixedly connected to the lower end of the vertically arranged inverted L-shaped positioning block, and the other side of the upper surface of the clamp body is fixedly connected to the lower end of the vertically arranged support, the upper end of the support is screwed to the clamping screw, the inner end of the clamping screw is fixedly connected to the transverse V-shaped block, and the horizontal end of the positioning block is provided with a V-shaped groove corresponding to the V-shaped opening of the transverse V-shaped block.
[0008] A detection reference ball is also provided on the upper surface of the clamp body, and the detection reference ball is arranged on the outer side of the support.
[0009] A counterweight block is also provided on the upper surface of the clamp body.
[0010] Compared with the prior art, the beneficial effects of the utility model are:
[0011] 1. The utility model adopts the self-positioning clamping of the transverse clamping mechanism and the longitudinal clamping mechanism to solve the problem of inconsistent position of each part after positioning and installation in the fixture in the state of the part blank in the traditional positioning clamping, ensures the stability and consistency of the part in the fixture, improves the processing accuracy, reduces the adjustment time in the processing process, and improves the processing efficiency.
[0012] 2. The utility model can automatically adapt to the changes in the external dimensions of the parts and realize the fast and accurate positioning of the parts in the fixture, which not only simplifies the operation process and reduces the difficulty of operation, but also improves the accuracy and efficiency of positioning, providing a new solution for the development of the machinery manufacturing industry. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a structural schematic diagram of the utility model;
[0014] Figure 2 yes Figure 1 AA section view;
[0015] Figure 3 yes Figure 2 BB cross-sectional view. DETAILED DESCRIPTION
[0016] The technical solution of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0017] A cross V-block self-centering clamp, comprising a clamp body 1, a mounting seat 9, a transverse clamping mechanism and a longitudinal clamping mechanism; the longitudinal clamping mechanism comprises a longitudinal V-block 4, a bidirectional screw 8 and a screw support 10; the middle part of the upper surface of the clamp body 1 is fixedly connected to the screw support 10, the screw support 10 is rotatably connected to the middle part of the horizontally arranged bidirectional screw 8 through a bearing, the two sides of the bidirectional screw 8 are respectively threadedly connected to the corresponding longitudinal V-block 4, the V-shaped openings of the two longitudinal V-blocks 4 are arranged opposite to each other, and the two longitudinal V-blocks 4 are both slidably connected to the upper surface of the clamp body 1 through a slide groove; when the bidirectional screw 8 is driven, the two longitudinal V-blocks can be moved in opposite directions at the same time; the upper end of the screw support 10 is fixed with a mounting seat 9, and the mounting seat 9 is fixed to the upper surface of the clamp body 1 by a cylindrical pin and a hexagon socket bolt; the upper surface of the clamp body 1 is also provided with a transverse clamping mechanism arranged in coordination with the longitudinal clamping mechanism.
[0018] The transverse clamping mechanism includes a positioning block 2, a transverse V-shaped block 3, a support 7 and a clamping screw 15; one side of the upper surface of the clamp body 1 is fixedly connected to the lower end of the vertically arranged inverted L-shaped positioning block 2 by a hexagon socket bolt, and the other side of the upper surface of the clamp body 1 is fixedly connected to the lower end of the vertically arranged support 7 by a hexagon socket bolt, the upper end of the support 7 is threadedly connected to the clamping screw 15, and the inner end of the clamping screw 15 is fixedly connected to the transverse V-shaped block 3, and the horizontal end of the positioning block 2 is provided with a V-shaped groove with a draft angle of the mating part positioning surface corresponding to the V-shaped opening of the transverse V-shaped block 3.
[0019] The upper surface of the clamp body 1 is further provided with a detection reference ball 11 , and the detection reference ball 11 is arranged on the outer side of the support 7 .
[0020] A counterweight block 12 is further disposed on the upper surface of the clamp body 1 . Preferably, there are two counterweight blocks 12 , which are disposed on both sides of the support 7 , respectively.
[0021] The working process of this utility model is as follows:
[0022] After the part to be processed is loaded into the mounting seat 9, the bidirectional screw 8 is turned to make the two longitudinal V-blocks 4 move toward the part positioning surface at the same time, and the part is clamped in the longitudinal direction by the two longitudinal V-blocks 4. Then the clamping screw 15 is turned to make the transverse V-block 3 contact the part to be processed, and together with the V-groove of the positioning block 2, the part to be processed is clamped in the transverse direction. At this time, the part to be processed is restricted by the mounting seat 9, the transverse clamping mechanism and the longitudinal clamping mechanism to achieve complete clamping.
[0023] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent conditions of the claims are included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.
[0024] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
Claims
1. A cross V-block self-centering fixture, characterized in that: The invention comprises a clamping body (1), a mounting seat (9), a transverse clamping mechanism and a longitudinal clamping mechanism; the longitudinal clamping mechanism comprises a longitudinal V-shaped block (4), a bidirectional screw (8) and a screw support (10); the middle part of the upper surface of the clamping body (1) is fixedly connected to the screw support (10), the screw support (10) is rotatably connected to the middle part of the horizontally arranged bidirectional screw (8), the two sides of the bidirectional screw (8) are respectively screwed to the corresponding longitudinal V-shaped blocks (4), the V-shaped openings of the two longitudinal V-shaped blocks (4) are arranged opposite to each other, and the two longitudinal V-shaped blocks (4) are both slidably connected to the upper surface of the clamping body (1); the upper end of the screw support (10) is fixed with a mounting seat (9), and the upper surface of the clamping body (1) is also provided with a transverse clamping mechanism arranged in coordination with the longitudinal clamping mechanism.
2. A cross V-block self-centering fixture according to claim 1, characterized in that: The transverse clamping mechanism comprises a positioning block (2), a transverse V-shaped block (3), a support (7) and a clamping screw (15); one side of the upper surface of the clamp body (1) is fixedly connected to the lower end of the vertically arranged inverted L-shaped positioning block (2), and the other side of the upper surface of the clamp body (1) is fixedly connected to the lower end of the vertically arranged support (7); the upper end of the support (7) is threadedly connected to the clamping screw (15), and the inner end of the clamping screw (15) is fixedly connected to the transverse V-shaped block (3); and the horizontal end of the positioning block (2) is provided with a V-shaped groove corresponding to the V-shaped opening of the transverse V-shaped block (3).
3. A cross V-block self-centering fixture according to claim 2, characterized in that: The upper surface of the clamp body (1) is also provided with a detection reference ball (11), and the detection reference ball (11) is arranged on the outside of the support (7).
4. A cross V-block self-centering fixture according to claim 2 or 3, characterized in that: A counterweight block (12) is also provided on the upper surface of the clamp body (1).