Dovetail clamp for part machining and clamping
By designing an adjustable dovetail clamp, the problem of changing the clamp when clamping workpieces with large size differences in the prior art is solved, which achieves higher usage compatibility and flexibility and improves processing efficiency.
Patent Information
- Application Number
- CN202421278004.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-05
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-06-05
AI Technical Summary
When clamping workpieces with large size differences, existing dovetail fixtures need to be replaced, which leads to inconvenient use and inefficient efficiency.
A dovetail clamp including columns, blocks, dovetails, contact blocks, screws and sliders is designed. By adjusting the distance between dovetails and contact blocks, it adapts to workpieces of different sizes, and through the cooperation of screws and sliders, flexible adjustments to the blocks are achieved.
Improves the compatibility of fixtures, reduces the frequency of fixture replacement, improves processing efficiency, and increases flexibility in different usage scenarios.
Smart Images
Figure CN222643801U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of parts processing, in particular to a dovetail clamp for clamping parts processing. Background Art
[0002] In mechanical processing, it is often necessary to process multiple identical workpieces, such as milling the workpiece plane, drilling the workpiece plane hole, etc. If a fixture is used to clamp each workpiece, each workpiece needs to be clamped and loosened, and the next workpiece needs to be clamped and loosened again, and this process is repeated. This clamping method is inefficient and labor-intensive, so pneumatic dovetail clamps are available. However, in the current use of dovetail clamps, due to the small moving range of the moving slider, when clamping workpieces with larger size differences, the clamp needs to be replaced, which brings inconvenience to workshop processing and has limitations in use. Utility Model Content
[0003] The utility model aims to provide a dovetail clamp for clamping parts during machining, which has the advantages of bringing convenience to use, improving use compatibility and reducing use limitations.
[0004] The above-mentioned technical purpose of the utility model is achieved through the following technical solutions: a dovetail clamp for parts processing and clamping, comprising a column, blocks are equidistantly distributed on the surface of the column, a dovetail tenon is provided on one side of the surface of the block, and a contact block is provided on the other side of the surface of the block, the interior of the block is rotatably connected with a screw rod 1 through a bearing, the surface of the screw rod 1 is threadedly connected with a threaded block fixedly connected to the contact block, a mounting plate is fixedly installed on the top of the block, a screw rod 2 is provided on the surface of the mounting plate and penetrates to the rear side of the mounting plate, one end of the screw rod 2 contacts with the surface of the column, two sliders are fixedly installed on both sides of the rear side of the block, and a sliding groove 2 for cooperating with the sliding of the slider 2 is provided on the surface of the column.
[0005] The above technical solution is adopted: when clamping the parts, the workpiece is placed between the contact block and the dovetail tenon, and then the external air supply head is inserted into the pipeline. At this time, the gas pushes the piston plate to move, the spring is in a contracted state, and the sliding sleeve reduces the friction between the connecting rod and the rod body. The dovetail tenon moves toward the workpiece to clamp the workpiece, which avoids the need to replace the fixture due to the large size of the workpiece. The operator rotates nut one, which will drive screw one to rotate, so that the threaded block drives the contact block to move, and the slider one is connected to the sliding rod of the slide groove one, and cooperates with the contact block to slide on the surface of the block, so as to adjust the distance between the dovetail tenon and the contact block, so as to clamp workpieces of different sizes, increase the compatibility of the clamp, and avoid the inconvenience of frequent replacement of the clamp. At the same time, in different usage scenarios, the position of the workpiece and the block can be flexibly adjusted, and by rotating nut two, nut two drives screw two to rotate, so as to realize the progressive advancement of screw two inside the mounting plate. When one end of screw two cancels contact with the surface of the column, the position of the movable block on the surface of the column is guided by slider two and slide groove two in cooperation with the movement of the block. After moving to the desired position, nut two is tightened again, so that screw two contacts with the surface of the column again, thereby realizing fixed limit of the block. This setting makes it easy to increase the flexibility of the clamp so as to adjust it to different usage scenarios.
[0006] The utility model is further configured that a connecting rod penetrating into the interior of the block is fixedly installed at one end of the dovetail tenon, and a piston plate is fixedly installed at one end of the connecting rod.
[0007] The above technical solution is adopted: the connecting rod is moved in coordination with the dovetail tenon, and the connecting rod connects the piston plate and the dovetail tenon synchronously.
[0008] The utility model is further configured that the piston plate and the block are slidably connected to each other, and a spring fixedly connected to the inside of the block is fixedly mounted on one side of the piston plate.
[0009] The above technical solution is adopted: the piston plate returns to the initial position after moving through the spring cooperation.
[0010] The utility model is further configured that the surface sliding sleeve of the connecting rod is connected with a sliding sleeve embedded in one side of the block, and one side of the connecting rod is provided with a pipeline communicating with the block.
[0011] The above technical solution is adopted: the friction between the connecting rod and the rod body is reduced by the sliding sleeve, and the pipeline facilitates the external air supply head to supply air to the inside of the block.
[0012] The utility model is further configured such that the top and bottom of the dovetail tenon are both provided with fixing blocks fixedly connected to the inside of the block body, clamping blocks are fixedly installed on both sides of the dovetail tenon, and a clamping groove for cooperating with the clamping block is provided inside the fixing block.
[0013] By adopting the above technical solution, the guidance between the two fixed blocks is achieved through the movement of the dovetail tenon via the clamping block and the clamping groove.
[0014] The utility model is further configured that a slider is fixedly installed at both ends of one side of the contact block, and a slide groove is provided inside the block body for sliding with the slider.
[0015] The above technical solution is adopted: the sliding rod of the sliding block 1 is connected with the sliding rod of the sliding groove 1, and the contact block slides on the surface of the block.
[0016] The utility model is further configured that one end of the screw rod 1 penetrates through one side of the block and is fixedly installed with a nut 1, and a mounting column is fixedly installed at the bottom of the column.
[0017] The above technical solution is adopted: the rotation of nut 1 will drive screw 1 to rotate, and the mounting column is installed in conjunction with the column body to facilitate fixing with a workshop pneumatic chuck or the like.
[0018] The utility model is further configured that a nut 2 is fixedly mounted on the other end of the second screw rod, and the second screw rod and the mounting plate are threadedly connected to each other.
[0019] By adopting the above technical solution, the rotation of the second nut will drive the second screw to rotate, thereby realizing the progressive advancement of the second screw inside the mounting plate.
[0020] In summary, the utility model has the following beneficial effects:
[0021] 1. When clamping parts during machining, the utility model places the workpiece between the contact block and the dovetail tenon, and then inserts the external air supply head into the pipeline. At this time, the gas pushes the piston plate to move, and the spring is in a contracted state. The dovetail tenon is moved toward the workpiece to achieve clamping of the workpiece, which avoids the need to replace the fixture due to the large size of the workpiece. The operator rotates nut one, which drives screw one to rotate, so that the threaded block drives the contact block to move, and the distance between the dovetail tenon and the contact block can be adjusted to facilitate clamping of workpieces of different sizes, thereby increasing the compatibility of the fixture and avoiding the inconvenience of frequent fixture replacement;
[0022] 2. The utility model can flexibly adjust the position of the workpiece and the block in different usage scenarios. By rotating nut two, nut two drives screw two to rotate, so as to realize the advancement of screw two inside the mounting plate. When one end of screw two cancels the contact with the surface of the column, the position of the movable block on the surface of the column can be changed. After moving to the desired position, nut two is re-tightened to make screw two contact with the surface of the column again, thereby realizing the fixed limit of the block. This setting makes it easy to increase the flexibility of use of the clamp so as to facilitate adjustment to suit different usage scenarios. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0024] Figure 2 It is a partially sectional enlarged schematic diagram of a block of the utility model viewed from above;
[0025] Figure 3 It is an enlarged schematic diagram of the utility model block.
[0026] Figure numerals: 1. column; 2. mounting column; 3. block; 4. dovetail; 5. connecting rod; 6. piston plate; 7. spring; 8. pipe; 9. sliding sleeve; 10. clamping block; 11. fixing block; 12. clamping groove; 13. contact block; 14. screw rod 1; 15. nut 1; 16. slide groove 1; 17. slider 1; 18. mounting plate; 19. screw rod 2; 20. nut 2; 21. slider 2; 22. slide groove 2; 23. threaded block. DETAILED DESCRIPTION
[0027] The utility model is further described in detail below in conjunction with the accompanying drawings.
[0028] Embodiment 1:
[0029] refer to Figure 1 , Figure 2 and Figure 3A dovetail clamp for clamping parts processing includes a column 1, blocks 3 are equidistantly distributed on the surface of the column 1, a dovetail tenon 4 is arranged on one side of the surface of the block 3, a contact block 13 is arranged on the other side of the surface of the block 3, a screw 14 is rotatably connected to the interior of the block 3 through a bearing, and a threaded block 23 fixedly connected to the contact block 13 is threadedly connected to the surface of the screw 14. When clamping the parts processing, the workpiece is placed between the contact block 13 and the dovetail tenon 4, and then the external air supply head is inserted into the pipeline 8. At this time, the gas pushes the piston plate 6 to move, and the spring 7 is in a contracted state. The dovetail tenon 4 is moved toward the workpiece to achieve the clamping of the workpiece, in order to avoid replacing the clamp due to the large size of the workpiece. The operator rotates the nut 15 to drive the screw 14 to rotate, so that the threaded block 23 drives the contact block 13 to move, so as to adjust the distance between the dovetail tenon 4 and the contact block 13 to facilitate clamping of workpieces of different sizes, increase the compatibility of the clamp, and avoid the inconvenience of frequent replacement of the clamp.
[0030] refer to Figure 2 A connecting rod 5 penetrating into the interior of the block 3 is fixedly installed at one end of the dovetail tenon 4, and a piston plate 6 is fixedly installed at one end of the connecting rod 5. The connecting rod 5 moves in coordination with the dovetail tenon 4, and the connecting rod 5 connects the piston plate 6 and the dovetail tenon 4 synchronously.
[0031] refer to Figure 2 The piston plate 6 and the block 3 are slidably connected to each other, and a spring 7 fixedly connected to the inside of the block 3 is fixedly installed on one side of the piston plate 6. The spring 7 cooperates with the piston plate 6 to return to the initial position after moving.
[0032] refer to Figure 2 The surface sliding sleeve 9 of the connecting rod 5 is connected to the sliding sleeve 9 embedded in one side of the block 3. One side of the connecting rod 5 is provided with a pipe 8 connected to the block 3. The sliding sleeve 9 reduces the friction between the connecting rod 5 and the rod body. The pipe 8 facilitates the external air supply head to supply air to the inside of the block 3.
[0033] refer to Figure 3 The top and bottom of the dovetail tenon 4 are provided with fixed blocks 11 fixedly connected to the inside of the block 3, and clamping blocks 10 are fixedly installed on both sides of the dovetail tenon 4. A clamping groove 12 is provided inside the fixed block 11 for clamping with the clamping block 10. The movement of the dovetail tenon 4 will realize the guidance between the two fixed blocks 11 through the clamping block 10 and the clamping groove 12.
[0034] refer to Figure 3 Slide blocks 17 are fixedly installed at both ends of one side of the contact block 13, and a slide groove 16 for cooperating with the slide block 17 is opened inside the block 3. The slide block 17 is connected to the sliding rod of the slide groove 16 to cooperate with the contact block 13 to slide on the surface of the block 3.
[0035] refer to Figure 3 One end of the screw rod 14 passes through one side of the block 3 and is fixedly installed with a nut 15. The bottom of the column 1 is fixedly installed with a mounting column 2. The rotation of the nut 15 will drive the screw rod 14 to rotate. The mounting column 2 is installed in conjunction with the column 1 to facilitate fixation with a workshop pneumatic chuck, etc.
[0036] Brief description of the use process: When clamping the parts, place the workpiece between the contact block 13 and the dovetail 4, and then insert the external air supply head into the pipe 8. At this time, the gas pushes the piston plate 6 to move, the spring 7 is in a contracted state, and the sliding sleeve 9 reduces the friction between the connecting rod 5 and the rod body 1. The dovetail 4 moves toward the workpiece to achieve the clamping of the workpiece, which is to avoid the replacement of the fixture due to the large size of the workpiece. The operator rotates the nut 15, which will drive the screw rod 14 to rotate, so that the threaded block 23 drives the contact block 13 to move, the slider 17 is connected to the sliding rod of the slide groove 16, and the contact block 13 slides on the surface of the block 3, so as to adjust the distance between the dovetail 4 and the contact block 13, so as to facilitate the clamping of workpieces of different sizes, increase the compatibility of the fixture, and avoid the inconvenience of frequent replacement of the fixture.
[0037] Embodiment 2:
[0038] refer to Figure 1 , Figure 2 and Figure 3 The nut 20 is provided on the surface of the cylinder 1 so that the screw 21 is in contact with the surface of the cylinder 1, and the nut 20 is provided on the surface of the cylinder 1 so that the screw 21 is in contact with the surface of the cylinder 1, and the nut 20 is provided on the surface of the cylinder 1 so that the screw 21 is in contact with the surface of the cylinder 1, and the nut 20 is provided on the surface of the cylinder 1 so that the screw 21 is in contact with the surface of the cylinder 1, and the nut 20 is provided on the surface of the cylinder 1 so that the screw 21 is in contact with the surface of the cylinder 1, and the nut 20 is provided on the surface of the cylinder 1 so that the screw 21 is in contact with the surface of the cylinder 1, so as to realize the fixed limit of the block 3.
[0039] refer to Figure 3The other end of the screw rod 19 is fixedly installed with a nut 20. The screw rod 19 and the mounting plate 18 are threadedly connected to each other. The rotation of the nut 20 will drive the screw rod 19 to rotate, thereby realizing the progressive advancement of the screw rod 19 inside the mounting plate 18.
[0040] Brief description of the usage process: In different usage scenarios, the position of the workpiece and the block 3 can be flexibly adjusted. By rotating the nut 20, the nut 20 drives the screw 2 19 to rotate, so that the screw 2 19 can be advanced inside the mounting plate 18. When one end of the screw 2 19 cancels the contact with the surface of the column 1, the position of the movable block 3 on the surface of the column 1 is adjusted. The slider 21 and the slide groove 22 cooperate with the movement of the block 3 to guide. After moving to the desired position, the nut 20 is re-tightened to make the screw 2 19 contact with the surface of the column 1 again, thereby achieving fixed limit of the block 3. This setting makes it easy to increase the flexibility of the clamp so that it can be adjusted to suit different usage scenarios.
[0041] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.
Claims
1. A dovetail clamp for clamping parts, comprising a column (1), characterized in that: The surface of the column (1) is equidistantly distributed with blocks (3), one side of the surface of the block (3) is provided with a dovetail tenon (4), the other side of the surface of the block (3) is provided with a contact block (13), the interior of the block (3) is rotatably connected with a screw rod (14) via a bearing, the surface of the screw rod (14) is threadedly connected with a threaded block (23) fixedly connected to the contact block (13), the top of the block (3) is fixedly installed with a mounting plate (18), the surface of the mounting plate (18) is provided with a screw rod (19) penetrating to the rear side of the mounting plate (18), one end of the screw rod (19) is in contact with the surface of the column (1), two sliders (21) are fixedly installed on both sides of the rear side of the block (3), and the surface of the column (1) is provided with a slide groove (22) for cooperating with the slide rod (21) for sliding.
2. A dovetail clamp for parts processing and clamping according to claim 1, characterized in that: A connecting rod (5) penetrating into the interior of the block (3) is fixedly mounted on one end of the dovetail tenon (4), and a piston plate (6) is fixedly mounted on one end of the connecting rod (5).
3. A dovetail clamp for parts processing and clamping according to claim 1, characterized in that: The piston plate (6) and the block body (3) are slidably connected to each other, and a spring (7) fixedly connected to the inside of the block body (3) is fixedly mounted on one side of the piston plate (6).
4. A dovetail clamp for parts processing and clamping according to claim 1, characterized in that: The surface sliding sleeve (9) of the connecting rod (5) is connected to a sliding sleeve (9) embedded in one side of the block (3), and one side of the connecting rod (5) is provided with a pipe (8) communicating with the block (3).
5. The dovetail clamp for parts processing and clamping according to claim 1, characterized in that: The top and bottom of the dovetail tenon (4) are both provided with a fixing block (11) fixedly connected to the inside of the block body (3), and both sides of the dovetail tenon (4) are fixedly installed with a clamping block (10), and the inside of the fixing block (11) is provided with a clamping slot (12) for clamping with the clamping block (10).
6. A dovetail clamp for parts processing and clamping according to claim 1, characterized in that: Slide blocks (17) are fixedly mounted at both ends of one side of the contact block (13), and a slide groove (16) is provided inside the block body (3) for cooperating with the slide block (17) for sliding.
7. A dovetail clamp for parts processing and clamping according to claim 1, characterized in that: One end of the screw rod (14) passes through one side of the block (3) and is fixedly mounted with a nut (15); and a mounting column (2) is fixedly mounted at the bottom of the column (1).
8. The dovetail clamp for parts processing and clamping according to claim 1, characterized in that: The other end of the second screw rod (19) is fixedly mounted with a second nut (20), and the second screw rod (19) and the mounting plate (18) are threadedly connected to each other.