Height-adjustable V-shaped device
By designing an adjustable height V-shaped device, the height of the shaft center is adjusted using a V-block connected by a double helical screw, solving the problem of inconsistent support for shaft parts and achieving fast and efficient support and measurement results.
Patent Information
- Application Number
- CN202423191265.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-12-23
AI Technical Summary
In the mechanical manufacturing process, the two ends of shaft parts are at different heights, making it difficult to use V-blocks for quick and efficient horizontal support, measurement, or processing.
An adjustable height V-shaped device was designed, which connects the left and right half of the V-shaped block through a double helical screw. The opening and closing of the V-shaped block is adjusted by a handwheel to keep the center position of the V-shape unchanged and achieve consistent support at the axis height.
It enables rapid and efficient horizontal support and measurement of shaft parts, increases the adjustment distance of the V-shaped device, and improves the stability of the support.
Smart Images
Figure CN223643302U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of mechanical manufacturing, specifically relating to a V-shaped device with adjustable height. Background Technology
[0002] In mechanical manufacturing, we often need to quickly place shaft-type parts horizontally for measurement or machining, such as measuring the keyway dimensions of a shaft or performing wire EDM sampling. In these processes, without a center point, it's necessary to use V-blocks to support both sides of the shaft and ensure the axis is parallel to the worktable. However, the diameters of the two sides of the shaft are often not the same, making it difficult to find a suitable V-block to ensure the center heights of both sides are consistent. Therefore, knowing how to quickly and efficiently provide horizontal support for shaft-type parts using V-blocks is of great importance. Summary of the Invention
[0003] In view of the shortcomings of the existing technology, this utility model proposes an adjustable height V-shaped device to solve the technical problem of inconsistent shaft center heights at both ends in the existing technology.
[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0005] An adjustable height V-shaped device includes a base assembly and a lead screw assembly placed in the base assembly. The lead screw assembly includes a left half V-shaped block and a right half V-shaped block. The left half V-shaped block includes a left triangular block. A first rectangular block and a second rectangular block are respectively arranged on the front and rear sides of the bottom of the left triangular block. The lower end face of the left triangular block and the lower inner end faces of the first and second rectangular blocks are connected to a third rectangular block. A left threaded hole is opened inside the third rectangular block.
[0006] The right half V-shaped block includes a right triangular block, and a fourth rectangular block and a fifth rectangular block are respectively provided on the front and rear sides of the bottom of the right triangular block. The lower end face of the right triangular block, the lower inner end face of the fourth rectangular block and the fifth rectangular block are connected to the sixth rectangular block. The sixth rectangular block has a right threaded hole inside.
[0007] The lead screw assembly also includes a double helical lead screw. The outer surface of the left end of the double helical lead screw is provided with a forward thread, and the outer surface of the right end of the double helical lead screw is provided with a reverse thread. The forward thread is helically connected to the left threaded hole, and the reverse thread is helically connected to the right thread. The threads of the forward thread and the reverse thread have opposite directions of rotation.
[0008] This utility model also has the following technical features:
[0009] The base assembly includes a base, and a rectangular hole with a closed bottom and an open top is provided in the middle of the base along the length direction for placing the third rectangular block, the sixth rectangular block and the double helical screw. Stepped holes that pass through the top and bottom are provided in the middle of the front and rear sides of the rectangular hole. A left end cover and a right end cover are provided on both sides of the base. A central hole is provided in the center of the left end cover and the right end cover. Threaded holes are provided in the front and rear sides of the central hole respectively.
[0010] The left end of the double helix screw extends out of the center hole opened in the center of the left end cover, and the right end of the double helix screw extends out of the center hole opened in the center of the right end cover; the right end of the double helix screw is also provided with a pin hole for installing a pin, the pin hole is located outside the center hole opened in the center of the right end cover, and the double helix screw is fixedly connected to the handwheel by the pin.
[0011] The lower outer surfaces of the first and second rectangular blocks are in contact with the upper surface of the base.
[0012] The lower outer surfaces of the fourth and fifth rectangular blocks are in contact with the upper surface of the base.
[0013] The left and right triangular blocks are arranged in a staggered manner, the first and fifth rectangular blocks are arranged in a staggered manner, and the second and fourth rectangular blocks are arranged in a staggered manner.
[0014] The third and sixth rectangular blocks are arranged symmetrically.
[0015] Two threaded holes are respectively opened on the front and rear sides of the central hole, with the two threaded holes on the front side and the two threaded holes on the rear side being symmetrically arranged.
[0016] The four threaded holes on the left and right end caps are symmetrically arranged.
[0017] Screws are installed in the threaded holes, and the left and right end caps are fixedly connected to the base by screws.
[0018] Screws are also installed inside the stepped hole.
[0019] Compared with the prior art, the present invention has the following beneficial technical effects:
[0020] (I) The present invention proposes an adjustable height V-shaped device, which uses a handwheel to drive a double threaded screw to rotate, causing the left half V-shaped block and the right half V-shaped block to separate or close. The height of the V-shaped block is adjusted, but the center position of the V-shaped block remains unchanged, so that its axial height is consistent with the axial height of the fixed V-shaped device to support shaft parts for processing or measurement.
[0021] (II) The left and right half V-shaped blocks of this utility model are placed alternately, which increases the adjustment distance of the V-shaped device; the two stepped holes on the base of this utility model make the placement more stable. Attached Figure Description
[0022] Figure 1 This is a front sectional view of an adjustable-height V-shaped device.
[0023] Figure 2 This is a side view of an adjustable-height V-shaped device.
[0024] Figure 3 This is a schematic diagram of the lead screw assembly.
[0025] Figure 4 This is a schematic diagram of the left half of the V-shaped block.
[0026] Figure 5 This is a schematic diagram of a double helix screw.
[0027] Figure 6 This is a schematic diagram of the base.
[0028] Figure 7 A schematic diagram of a V-shaped support for a stepped axis.
[0029] Figure 8 This is a schematic diagram illustrating the application of an adjustable-height V-shaped device.
[0030] The meanings of the labels in the diagram are as follows: 1-base assembly, 2-lead screw assembly, 3-fixed V-type device, 4-worktable.
[0031] 101-Base, 102-Rectangular hole, 103-Stepped hole, 104-Left end cap, 105-Right end cap, 106-Center hole, 107-Threaded hole, 108-Screw.
[0032] 201 - Left half V-block, 202 - Right half V-block, 203 - Double helix screw, 204 - Handwheel.
[0033] 20101 - Left triangular block, 20102 - First rectangular block, 20103 - Second rectangular block, 20104 - Third rectangular block, 20105 - Left threaded hole.
[0034] 20201 - Right triangular block, 20202 - Fourth rectangular block, 20203 - Fifth rectangular block, 20204 - Sixth rectangular block, 20205 - Right threaded hole.
[0035] 20301 - Forward thread, 20302 - Reverse thread, 20303 - Pin, 20304 - Pin opening.
[0036] The specific content of this utility model will be further explained in detail below with reference to the embodiments. Detailed Implementation
[0037] It should be noted that, unless otherwise specified, all mechanical equipment and components in this utility model are based on existing mechanical equipment and components.
[0038] Following the above technical solution, the following are specific embodiments of this utility model. It should be noted that this utility model is not limited to the following specific embodiments, and all equivalent modifications made based on the technical solution of this application fall within the protection scope of this utility model.
[0039] Example:
[0040] This embodiment provides a height-adjustable V-shaped device, such as... Figures 1 to 4 As shown, the assembly includes a base assembly 1 and a lead screw assembly 2 placed in the base assembly 1. The lead screw assembly 2 includes a left half V-shaped block 201 and a right half V-shaped block 202. The left half V-shaped block 201 includes a left triangular block 20101. A first rectangular block 20102 and a second rectangular block 20103 are respectively provided on the front and rear sides of the bottom of the left triangular block 20101. The lower end face of the left triangular block 20101, the lower inner end face of the first rectangular block 20102 and the second rectangular block 20103 are connected to a third rectangular block 20104. A left threaded hole 20105 is provided inside the third rectangular block 20104.
[0041] like Figures 1 to 4 As shown, the right half V-shaped block 202 includes a right triangular block 20201. A fourth rectangular block 20202 and a fifth rectangular block 20203 are respectively provided on the front and rear sides of the bottom of the right triangular block 20201. The lower end face of the right triangular block 20201, the lower inner end face of the fourth rectangular block 20202 and the fifth rectangular block 20203 are connected to the sixth rectangular block 20204. A right threaded hole 20205 is provided inside the sixth rectangular block 20204.
[0042] like Figures 1 to 5 As shown, the lead screw assembly 2 also includes a double helix lead screw 203. The outer surface of the left end of the double helix lead screw 203 is provided with a forward thread 20301, and the outer surface of the right end of the double helix lead screw 203 is provided with a reverse thread 20302. The forward thread 20301 is helically connected to the left threaded hole 20105, and the reverse thread 20302 is helically connected to the right threaded hole 20205. The threads of the forward thread 20301 and the reverse thread 20302 have opposite directions of rotation.
[0043] like Figures 1 to 6As shown, the base assembly 1 includes a base 101. A rectangular hole 102 is provided in the middle of the base 101 along the length direction. The hole is closed at the bottom and open at the left and right sides and the top. It is used to place the third rectangular block 20104, the sixth rectangular block 20204 and the double helical screw 203. A stepped hole 103 is provided in the middle of the front and rear sides of the rectangular hole 102. A left end cover 104 and a right end cover 105 are provided on the two sides of the base 101. A central hole 106 is provided in the center of the left end cover 104 and the right end cover 105. A threaded hole 107 is provided in the front and rear sides of the central hole 106 respectively.
[0044] like Figure 1 and Figure 5 As shown, the left end of the double helix screw 203 extends out of the center hole 106 opened in the center of the left end cover 104, and the right end of the double helix screw 203 extends out of the center hole 106 opened in the center of the right end cover 105; the right end of the double helix screw 203 is also provided with a pin hole 20304 for installing a pin 20303, the pin hole 20304 is located outside the center hole 106 opened in the center of the right end cover 105, and the double helix screw 203 is fixedly connected to the handwheel 204 through the pin 20303.
[0045] like Figure 1 As shown, the lower outer surfaces of the first rectangular block 20102 and the second rectangular block 20103 are in contact with the upper surface of the base 101; the lower outer surfaces of the fourth rectangular block 20202 and the fifth rectangular block 20203 are in contact with the upper surface of the base 101.
[0046] like Figures 1 to 4 As shown, the left triangular block 20101 and the right triangular block 20201 are arranged in a staggered manner, the first rectangular block 20102 and the fifth rectangular block 20203 are arranged in a staggered manner, the second rectangular block 20103 and the fourth rectangular block 20202 are arranged in a staggered manner, and the staggered arrangement increases the adjustment distance of the V-shaped device; the third rectangular block 20104 and the sixth rectangular block 20204 are arranged symmetrically.
[0047] like Figure 2 and Figure 6 As shown, two threaded holes 107 are respectively opened on the front and rear sides of the central hole 106, and the two threaded holes 107 on the front side and the two threaded holes 107 on the rear side are symmetrically arranged.
[0048] like Figure 2 and Figure 6 As shown, the four threaded holes 107 on the left end cover 104 and the right end cover 105 are symmetrically arranged.
[0049] like Figure 1 and Figure 2 As shown, screws 108 are installed in the threaded hole 107, and the left end cover 104 and the right end cover 105 are fixedly connected to the base 101 by screws 108.
[0050] like Figure 1 and Figure 6 As shown, screws 108 are also installed in the stepped hole 103.
[0051] Specifically in this embodiment, the central hole 106 is used to fix the double helical screw 203.
[0052] Specifically in this embodiment, the two inner sides of the base 101 restrict the swinging of the left half V-block 201 and the right half V-block 202.
[0053] Specifically in this embodiment, screws 108 are installed in the stepped hole 103 to fix the height-adjustable V-shaped device to the machine tool worktable.
[0054] In this specific embodiment, such as Figure 7 and Figure 8 As shown, during operation, first select a suitable fixed V-block 3 based on the known diameter of the shaft. Place the fixed V-block 3 and the adjustable V-block 4 on the worktable. Place one side of the shaft on the fixed V-block 3 and the other side on the adjustable V-block 3. Visually inspect or use a measuring tool to check if the two sides of the shaft are at the same height. If the end supported by the adjustable V-block 3 is too low, rotate the handwheel 204 to close the two sides of the left half V-block 201 and the right half V-block 202, gradually raising this end of the shaft. If the adjustable V-block 3 is too low, rotate the handwheel 204 to close the left half V-block 201 and the right half V-block 202, gradually raising this end of the shaft. The end supported by the device is too high. Rotating the handwheel 204 in the opposite direction separates the two sides of the left half V-block 201 and the right half V-block 202, causing this end of the shaft to gradually rise. Rotating the handwheel 204 drives the double threaded screw 203 to rotate, thereby causing the left half V-block 201 and the right half V-block 202 on the double threaded screw 203 to open or close horizontally. The included angle of the V-shape remains unchanged, while the V-shaped surface rises or falls, thereby raising or lowering the height of the shaft. The adjustment can be completed by visually inspecting or measuring the two ends of the shaft to ensure equal height and thickness.
Claims
1. A height-adjustable V-shaped device, comprising a base assembly (1) and a lead screw assembly (2) disposed within the base assembly (1), characterized in that, The lead screw assembly (2) includes a left half V-block (201) and a right half V-block (202); The left half V-shaped block (201) includes a left triangular block (20101). A first rectangular block (20102) and a second rectangular block (20103) are respectively provided on the front and rear sides of the bottom of the left triangular block (20101). The lower end face of the left triangular block (20101), the lower inner end face of the first rectangular block (20102) and the second rectangular block (20103) are connected to a third rectangular block (20104). A left threaded hole (20105) is opened inside the third rectangular block (20104). The right half V-shaped block (202) includes a right triangular block (20201). A fourth rectangular block (20202) and a fifth rectangular block (20203) are respectively provided on the front and rear sides of the bottom of the right triangular block (20201). The lower end face of the right triangular block (20201), the lower inner end face of the fourth rectangular block (20202) and the fifth rectangular block (20203) are connected to the sixth rectangular block (20204). The sixth rectangular block (20204) has a right threaded hole (20205) inside. The lead screw assembly (2) further includes a double helical lead screw (203). The outer surface of the left end of the double helical lead screw (203) is provided with a forward thread (20301), and the outer surface of the right end of the double helical lead screw (203) is provided with a reverse thread (20302). The forward thread (20301) is helically connected to the left threaded hole (20105), and the reverse thread (20302) is helically connected to the right threaded hole (20205). The threads of the forward thread (20301) and the reverse thread (20302) have opposite directions of rotation.
2. The height-adjustable V-shaped device as described in claim 1, characterized in that, The base assembly (1) includes a base (101). The base (101) has a rectangular hole (102) in the middle along the length direction, which is closed at the bottom and open at the left and right and at the top, for placing the third rectangular block (20104), the sixth rectangular block (20204) and the double helical screw (203). The rectangular hole (102) has a stepped hole (103) that runs vertically through the middle of the front and rear sides. The base (101) has a left end cap (104) and a right end cap (105) on both sides. The left end cap (104) and the right end cap (105) have a central hole (106) in the center. The central hole (106) has threaded holes (107) on the front and rear sides respectively.
3. The height-adjustable V-shaped device as described in claim 1, characterized in that, The left end of the double helix screw (203) extends out of the center hole (106) opened in the center of the left end cover (104), and the right end of the double helix screw (203) extends out of the center hole (106) opened in the center of the right end cover (105); the right end of the double helix screw (203) is also provided with a pin hole (20304) for installing a pin (20303), the pin hole (20304) is located outside the center hole (106) opened in the center of the right end cover (105), and the double helix screw (203) is fixedly connected to the handwheel (204) through the pin (20303).
4. The height-adjustable V-shaped device as described in claim 1, characterized in that, The lower outer surfaces of the first rectangular block (20102) and the second rectangular block (20103) are in contact with the upper surface of the base (101); The lower outer surfaces of the fourth rectangular block (20202) and the fifth rectangular block (20203) are in contact with the upper surface of the base (101).
5. The height-adjustable V-shaped device as described in claim 1, characterized in that, The left triangular block (20101) and the right triangular block (20201) are arranged in a staggered manner, the first rectangular block (20102) and the fifth rectangular block (20203) are arranged in a staggered manner, and the second rectangular block (20103) and the fourth rectangular block (20202) are arranged in a staggered manner. The third rectangular block (20104) and the sixth rectangular block (20204) are arranged symmetrically.
6. The height-adjustable V-shaped device as described in claim 2, characterized in that, The central hole (106) has two threaded holes (107) on its front and rear sides respectively, and the two threaded holes (107) on the front side and the two threaded holes (107) on the rear side are symmetrically arranged.
7. The height-adjustable V-shaped device as described in claim 2, characterized in that, The four threaded holes (107) on the left end cap (104) and the right end cap (105) are symmetrically arranged.
8. The height-adjustable V-shaped device as described in claim 2, characterized in that, Screws (108) are installed in the threaded hole (107), and the left end cover (104) and the right end cover (105) are fixedly connected to the base (101) by screws (108).
9. The height-adjustable V-shaped device as described in claim 2, characterized in that, Screws (108) are also installed in the stepped hole (103).