Dovetail clamping block

Abstract

The utility model discloses a dovetail clamping block, and relates to the field of mechanical industry, the dovetail clamping block comprises a clamping block body and a pressing mechanism mounted in the clamping block body, clamping grooves are formed in the outer walls of the two sides of the clamping block body, the section of each clamping groove is of a trapezoidal structure, and a mounting groove for mounting the pressing mechanism is formed in the outer wall of one side of the clamping block body. And rectangular openings communicating with the mounting groove are formed in the inner walls of one sides of the two clamping grooves correspondingly, pressing blocks are slidably connected to the inner walls of the two rectangular openings correspondingly, and the pressing mechanism comprises a driving assembly for driving the two pressing blocks to act. According to the clamping block, the clamping block body is provided with the clamping groove, so that the clamping block can be conveniently installed on the jaw vice, the adjustable pressing block is arranged in the clamping groove, the pressing block can be conveniently pressed on the inner wall of the dovetail groove of the jaw vice when stretching out, and therefore the clamping block body can be conveniently fixed, and the problem that the clamping block body is prone to shaking on the jaw vice is solved.

Description

Technical Field

[0001] The present application relates to the field of mechanical industry, and in particular to a dovetail clamp. Background Art

[0002] A vise is a tool commonly used in the machinery industry to clamp workpieces. There are many types of vises currently in use, such as bench vises, K-type vises, vector precision vises, pneumatic vises, and hydraulic vises. These vises all use two flat-type jaws to clamp the workpiece, collectively known as flat jaw vises. Their structure consists of a jaw body, base, guide nut, lead screw, and jaw body. The movable jaw slides with the guide rails of the bench vise's fixed jaw body via guide rails. The lead screw is mounted on the movable jaw body and can rotate, cooperating with the lead screw nut installed in the fixed jaw body. When the handle is cranked to rotate the lead screw, the movable jaw body is driven to move axially relative to the fixed jaw body, thereby clamping or loosening the workpiece.

[0003] After searching, the Chinese patent publication number CN219358728U discloses a vise device for clamping special-shaped parts, including a vise base, a rotating handle, a screw, a movable jaw, a dovetail plate and a dovetail clamp; the dovetail plate is installed on the head of the vise base, the screw passes through the tail of the vise base, the end of the screw close to the head of the vise base is connected to the movable jaw, the movable jaw moves on the vise base, the end of the screw close to the tail of the vise base is connected to the rotating handle, and the dovetail clamp is installed on the movable jaw.

[0004] A vise device for clamping special-shaped parts in the above-mentioned patent has the following shortcomings: in the above-mentioned patent, a dovetail clamp is used to assist in clamping special-shaped parts, and the dovetail clamp is installed on the vise in conjunction with the dovetail groove on the movable clamp, but the dovetail clamp is directly inserted into the dovetail groove. Long-term insertion and removal will cause the dovetail to accelerate and the dovetail groove to wear, thereby increasing the gap between the clamp and the dovetail groove, causing the dovetail clamp to shake in the dovetail groove, affecting the clamping and fixation of the parts. Utility Model Content

[0005] In order to solve the problem that the existing dovetail clamp becomes worn after long-term use, resulting in an increase in the gap between the dovetail clamp and the dovetail slot, the present application provides a dovetail clamp.

[0006] The dovetail clamp provided in this application adopts the following technical solution:

[0007] A dovetail clamp comprises a clamp body and a clamping mechanism installed inside the clamp body. Clamping grooves are provided on both side outer walls of the clamp body, and the cross-section of the clamping grooves is a trapezoidal structure. An installation groove for installing the clamping mechanism is provided on one side outer wall of the clamp body. A rectangular opening connected to the installation groove is provided on one side inner wall of the two clamping grooves, and the inner walls of the two rectangular openings are slidably connected to clamping blocks. The clamping mechanism includes a driving component that drives the two clamping blocks to move.

[0008] By adopting the above technical solution, the clamping block can be conveniently installed in the dovetail groove on the vise through the clamping groove on the clamping block body, and then the two clamping blocks are driven by the driving component in the clamping block body to press on the inner wall of the dovetail groove, thereby facilitating the fixing of the clamping block body in the dovetail groove and avoiding the shaking of the clamping block when clamping the parts.

[0009] The driving assembly includes a bidirectional screw rotatably connected to the inner wall of the installation groove, and the outer wall of the bidirectional screw is threadedly connected to two symmetrically arranged threaded sleeves.

[0010] By adopting the above technical solution, the bidirectional screw can be conveniently installed by setting the installation groove, and the bidirectional screw can directly drive the threaded sleeve to move toward or away from each other when rotating.

[0011] The outer walls on both sides of the two threaded sleeves are rotatably connected with connecting plates, and one end of the four connecting plates is respectively rotatably connected with two sliding seats.

[0012] By adopting the above technical solution, the four connecting plates are rotatably mounted on the two threaded sleeves, and the arrangement of the connecting plates can effectively prevent the threaded sleeves from rotating with the bidirectional screw.

[0013] Two symmetrically arranged sliding rods are fixedly connected to the inner walls of both sides of the installation groove, and the two sliding seats are respectively slidably connected to the outer walls of the two sliding rods, and the two sliding seats are respectively fixedly connected to the two pressing blocks.

[0014] By adopting the above technical solution, the sliding trajectories of the two sliding seats are conveniently limited by the setting of the two sliding rods, thereby avoiding the offset of the sliding seats during the sliding process, and conveniently driving the pressing block to move when the sliding seats move.

[0015] A groove is provided on an outer wall of one side of the pressing block, and a contact block is slidably connected to the inner wall of the groove.

[0016] By adopting the above technical solution, the contact block can be easily slidably installed by providing the groove in the pressing block.

[0017] The outer wall of the bottom of the contact block is fixedly connected with a spring, and one end of the spring is fixedly connected to the inner wall of the bottom of the groove.

[0018] By adopting the above technical solution, the spring is set to facilitate elastic support of the contact block. When the clamping block contacts the inner wall of the dovetail groove, the spring facilitates pushing the contact block to always be pressed against the inner wall of the dovetail groove, avoiding shaking when the clamping block is installed.

[0019] A closing cover is fixedly connected to the inner wall of the installation groove, and a clamping groove is provided on one side outer wall of the clamping block body.

[0020] By adopting the above technical solution, the installation groove can be easily closed by providing the closing cover, and the parts can be easily clamped by providing the clamping groove.

[0021] A circular groove is provided on one side outer wall of the clamping block body, and a rotating part is rotatably connected to the inner wall of one side of the circular groove. One end of a transmission shaft of the rotating part is fixedly connected to the bidirectional screw.

[0022] By adopting the above technical solution, the circular groove is provided to conveniently hide the rotating part, and when the rotating part rotates, it is convenient to directly drive the bidirectional screw to rotate, thereby facilitating the adjustment of the position of the pressing block.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. This invention provides a clamping groove on the clamping block body to facilitate installation of the clamping block on the vise. An adjustable pressing block is provided in the clamping groove. When the pressing block is extended, it is convenient to press against the inner wall of the dovetail groove of the vise, thereby facilitating the fixation of the clamping block body and preventing the clamping block body from shaking easily on the vise.

[0025] 2. This application sets a driving assembly in the clamping block body, and the cooperation between the bidirectional screw, threaded sleeve and connecting plate in the driving assembly facilitates direct driving of the clamping block, thereby facilitating manual adjustment of the positions of the two clamping blocks. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall structure of a dovetail clamp according to an embodiment of the present application;

[0027] Figure 2 This is a schematic diagram mainly showing the internal structure of the clamp body in an embodiment of the present application;

[0028] Figure 3 This is a schematic diagram mainly showing the structure of the pressing mechanism in an embodiment of the present application;

[0029] Figure 4 This is a schematic diagram of the cross-sectional structure of the compression block according to the embodiment of the present application;

[0030] Figure numerals: 1. clamping block body; 2. clamping groove; 3. clamping groove; 4. circular groove; 5. rotating part; 6. mounting groove; 7. closing cover; 8. clamping mechanism; 9. driving assembly; 10. bidirectional screw; 11. threaded sleeve; 12. connecting plate; 13. sliding rod; 14. sliding seat; 15. clamping block; 16. groove; 17. contact block; 18. spring. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-Figure 4 This application is described in further detail.

[0032] The embodiment of the present application discloses a dovetail clamp.

[0033] Reference Figure 1-3 A dovetail clamp comprises a clamp body 1 and a clamping mechanism 8 installed inside the clamp body 1. Clamping grooves 2 are provided on both sides of the outer wall of the clamp body 1, and the cross section of the clamping grooves 2 is a trapezoidal structure. A clamping groove 3 for clamping a workpiece is provided on one side of the outer wall of the clamp body 1. An installation groove 6 for installing the clamping mechanism 8 is provided on the outer wall of the clamp body 1.

[0034] Reference Figure 2-3 , the inner walls of one side of the two clamping grooves 2 are each provided with a rectangular opening connected to the mounting groove 6, and the inner walls of the two rectangular openings are slidably connected with a clamping block 15, and the clamping mechanism 8 includes a driving assembly 9 that drives the two clamping blocks 15;

[0035] During use, the drive assembly 9 is arranged to conveniently drive the two pressing blocks 15 to be pressed tightly into the dovetail grooves where the clamping blocks are installed.

[0036] Reference Figure 3 The driving assembly 9 includes a bidirectional screw 10 rotatably connected to the inner wall of the mounting groove 6, and the outer wall of the bidirectional screw 10 is screwed with two symmetrically arranged threaded sleeves 11, and the outer walls of the two threaded sleeves 11 on both sides are rotatably connected with a connecting plate 12, which is rotatably installed on the two threaded sleeves 11 through the four connecting plates 12. At the same time, the setting of the connecting plate 12 can effectively prevent the threaded sleeve 11 from rotating with the bidirectional screw 10, and one end of the four connecting plates 12 is respectively rotatably connected to two sliding seats 14, and the inner walls on both sides of the mounting groove 6 are fixedly connected to two symmetrically arranged sliding rods 13, and the two sliding seats 14 are respectively slidably connected to the outer walls of the two sliding rods 13, and the two sliding seats 14 are respectively fixedly connected to the two pressing blocks 15;

[0037] When in use, the installation groove 6 is set to facilitate the rotation and installation of the bidirectional screw 10. When the bidirectional screw 10 rotates, it is convenient to directly drive the threaded sleeve 11 to move toward or away from each other. When the two threaded sleeves 11 move toward each other, they directly push the two sliding seats 14 to move away from each other through the connecting plate 12, thereby conveniently driving the two clamping blocks 15 to move. The setting of the slide rod 13 facilitates limiting the sliding trajectory of the sliding seat 14 to avoid offset when the clamping block 15 slides.

[0038] Reference Figure 1 and Figure 4 , a groove 16 is opened on the outer wall of one side of the clamping block 15, and the inner wall of the groove 16 is slidably connected to the contact block 17, the outer wall of the bottom of the contact block 17 is fixedly connected to the spring 18, and one end of the spring 18 is fixedly connected to the inner wall of the bottom of the groove 16, the inner wall of the mounting groove 6 is fixedly connected to the closing cover 7, a circular groove 4 is opened on the outer wall of one side of the clamping block body 1, and the inner wall of one side of the circular groove 4 is rotatably connected to the rotating part 5, and one end of the transmission shaft of the rotating part 5 is fixedly connected to the bidirectional screw 10;

[0039] During use, the spring 18 is provided to facilitate elastic support of the contact block 17. When the clamping block 15 contacts the inner wall of the dovetail groove, the spring 18 facilitates pushing the contact block 17 to always be pressed against the inner wall of the dovetail groove to avoid shaking when the clamping block is installed. The closing cover 7 is provided to facilitate closing the installation groove 6. The clamping groove 3 is provided to facilitate clamping the parts. The circular groove 4 is provided to facilitate hiding the rotating part 5. When the rotating part 5 rotates, it is convenient to directly drive the bidirectional screw 10 to rotate, thereby facilitating adjustment of the position of the clamping block 15.

[0040] The implementation principle of a dovetail clamp block in an embodiment of the present application is as follows: during use, when the clamp block body 1 is worn during use, when the clamp block body 1 is used again, the clamp block body 1 is first placed in the dovetail groove, and then connected to the outer wall of the rotating part 5 through a socket wrench, and the socket wrench is rotated to drive the rotating part 5 to drive the bidirectional screw 10 to rotate. When the bidirectional screw 10 rotates, it is convenient to drive the two threaded sleeves 11 to move toward or away from each other. When the two threaded sleeves 11 move toward each other, they directly drive the connecting plate 12 to push the sliding seat 14 to move. When the two sliding seats 14 move away from each other, they directly drive the clamping block 15 to press on the inner wall of the dovetail groove. When the clamping block 15 is pressed on the inner wall of the dovetail groove, the contact block 17 compresses the spring 18.

[0041] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A dovetail clamp, comprising a clamp body (1) and a clamping mechanism (8) installed inside the clamp body (1), characterized in that: The outer walls on both sides of the clamping block body (1) are provided with clamping grooves (2), and the cross-section of the clamping grooves (2) is a trapezoidal structure. The outer wall on one side of the clamping block body (1) is provided with a mounting groove (6) for mounting a clamping mechanism (8). The inner walls on one side of the two clamping grooves (2) are provided with rectangular openings connected to the mounting grooves (6), and the inner walls of the two rectangular openings are slidably connected with clamping blocks (15). The clamping mechanism (8) includes a driving component (9) for driving the two clamping blocks (15) to move.

2. The dovetail clamp according to claim 1, characterized in that: The driving assembly (9) comprises a bidirectional screw (10) rotatably connected to the inner wall of the mounting groove (6), and the outer wall of the bidirectional screw (10) is screwed with two symmetrically arranged threaded sleeves (11).

3. The dovetail clamp according to claim 2, characterized in that: The outer walls of both sides of the two threaded sleeves (11) are rotatably connected to connecting plates (12), and one end of the four connecting plates (12) is rotatably connected to two sliding seats (14).

4. The dovetail clamp according to claim 3, characterized in that: Two symmetrically arranged sliding rods (13) are fixedly connected to the inner walls of both sides of the installation groove (6), and the two sliding seats (14) are respectively slidably connected to the outer walls of the two sliding rods (13), and the two sliding seats (14) are respectively fixedly connected to the two pressing blocks (15).

5. The dovetail clamp according to claim 4, characterized in that: A groove (16) is provided on one outer wall of the pressing block (15), and a contact block (17) is slidably connected to the inner wall of the groove (16).

6. The dovetail clamp according to claim 5, characterized in that: The outer wall of the bottom of the contact block (17) is fixedly connected with a spring (18), and one end of the spring (18) is fixedly connected to the inner wall of the bottom of the groove.

7. The dovetail clamp according to claim 6, characterized in that: A closing cover (7) is fixedly connected to the inner wall of the installation groove (6), and a clamping groove (3) is provided on one side outer wall of the clamping block body (1).

8. The dovetail clamp according to claim 7, characterized in that: A circular groove (4) is provided on one side outer wall of the clamp body (1), and a rotating part (5) is rotatably connected to one side inner wall of the circular groove (4), and one end of the transmission shaft of the rotating part (5) is fixedly connected to the bidirectional screw (10).

Images