Rotary positioning type press clamp fixture

Abstract

The utility model provides a kind of end cap rotary positioning type pressure clamp fixture, it is characterized by, including: base, support and location mechanism and pressure mechanism, support and location mechanism is installed on base, support and location mechanism is used to support the workpiece to be pressed and clamped, support and location mechanism is equipped with pressure mechanism, and pressure mechanism output can be pressed and clamped workpiece to be pressed and clamped.This end cap rotary positioning type pressure clamp fixture is positioned to the rotation angle of pressure block by positioning mechanism, prevent workpiece from deviating in the process of being pressed and clamped, ensure the precision and stability of clamping.

Description

Technical Field

[0001] This utility model relates to clamping fixtures, specifically to a rotary positioning clamping fixture for end caps. Background Technology

[0002] In the field of machining, stable workpiece clamping is a crucial step in ensuring machining accuracy. Traditional manual clamping fixtures typically consist of a base, a support and retention mechanism, and a clamping mechanism. The support and retention mechanism supports the workpiece to be clamped, while the clamping mechanism securely presses the workpiece against the support and retention mechanism. However, existing technologies have some shortcomings. First, traditional clamping mechanisms are complex to operate when adjusting the height and rotation angle of the clamping block, requiring manual adjustment through the coordination of multiple components. This is not only inefficient but also difficult to achieve precise control, failing to meet the diverse needs of workpieces with different shapes and sizes. Second, the stability of the limit adjustment mechanism is insufficient. Over long-term use, the limit components are prone to wear, leading to a decrease in clamping force and affecting the stability of workpiece clamping. Utility Model Content

[0003] This utility model provides an end cap rotation positioning clamping fixture, which solves the problem that the existing technology requires manual adjustment through the cooperation of multiple parts, which is not only inefficient but also difficult to achieve precise control and cannot meet the diverse needs of workpieces of different shapes and sizes.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: The present invention provides an end cap rotation positioning clamping fixture, including: a base, a support and retention mechanism and a clamping mechanism. The support and retention mechanism is installed on the base and is used to support the workpiece to be clamped. The clamping mechanism is installed next to the support and retention mechanism and the output end of the clamping mechanism can clamp the workpiece to be clamped. The clamping mechanism includes: a mounting base, a lifting mechanism, and a limit adjustment mechanism. Both the lifting mechanism and the limit adjustment mechanism are mounted on the mounting base. The lifting end of the lifting mechanism is used to clamp the workpiece to be clamped. The limit adjustment mechanism is located on one side of the lifting mechanism and can position the height and rotation angle of the lifting end of the lifting mechanism.

[0005] Preferably, the lifting mechanism includes: a fixed column, a lifting guide rod, a first spring, a pressure block, and a nut. The fixed column is connected to the mounting base, the lifting guide rod is mounted on the fixed column, the pressure block is slidably connected to the lifting guide rod, the first spring is sleeved on the lifting guide rod and located between the pressure block and the base, and the first spring can keep the pressure block away from the base. The nut is threadedly connected to the lifting guide rod and is located above the pressure block. The end of the pressure block near the limit adjustment mechanism is a clamping part, which is used to cooperate with the limit adjustment mechanism to clamp the workpiece to be clamped. The end of the pressure block away from the limit adjustment mechanism is a limiting part, which can be acted upon by the limit adjustment mechanism.

[0006] Preferably, the mounting base includes a first mounting platform and a second mounting platform, with the lifting mechanism located on the first mounting platform and a limit adjustment mechanism mounted on the second mounting platform.

[0007] Preferably, the limit adjustment mechanism includes: a rotating rod, a rotating connecting block, a limit head, and a positioning mechanism. The second mounting base has a positioning groove and a limit groove. A limit block is located between the positioning groove and the limit groove. The bottom end of the rotating rod passes through the limit block and extends into the limit groove, where it is fixedly connected to one end of the rotating connecting block. The other end of the rotating connecting block is wrapped around the fixed column, and the rotating connecting block can rotate relative to the fixed column. A limit head is connected to the upper end of the rotating rod, and the limit head is threadedly connected to the rotating rod. A positioning mechanism is mounted on the rotating rod, and the positioning mechanism is located between the rotating connecting block and the limit head. The positioning mechanism can limit the rotation angle of the rotating rod around the fixed column.

[0008] Preferably, the positioning mechanism includes: a limiting ring, a connecting rod, a pressing plate, a rotation limiting block, a connecting column, a second spring, a first positioning tooth, and a second positioning tooth. A ring groove is formed on the side of the limiting head, and the limiting ring surrounds the ring groove. One end of the connecting rod is connected to the limiting ring, and the other end of the connecting rod is connected to the pressing plate. The rotation limiting block is located in the positioning groove and has a C-shaped structure. The bottom end of the rotation limiting block is passed through by the rotating rod. A connecting column is installed inside the rotation limiting block, and the pressing plate is slidably connected to the connecting column. The second spring surrounds the connecting column, and one end of the second spring is connected to the upper end of the rotation limiting block and the pressing plate, respectively. A first positioning tooth is installed on the inner wall of the positioning groove, and a second positioning tooth is installed on the end of the rotation limiting block near the rotating rod. The first positioning tooth can mesh with the second positioning tooth, and the second spring can keep the first positioning tooth disengaged from the second positioning tooth.

[0009] Preferably, the connection end between the rotating connecting block and the rotating rod is located within the limiting groove, and the limiting groove has an arc-shaped structure.

[0010] Preferably, the limiting block has an arc-shaped guide groove through which the rotating rod passes.

[0011] Preferably, a stop is provided on one side of the bottom of the limiting part of the pressure block, and the stop can be blocked by the limiting head.

[0012] Compared with the prior art, this utility model has the following advantages: This end cap rotation positioning clamping fixture works in concert with the lifting mechanism and the limit adjustment mechanism in the clamping mechanism. The lifting mechanism uses components such as a fixed column, lifting guide rod, first spring, pressure block and nut to make the pressure block stably clamp the workpiece. The limit adjustment mechanism positions the pressure block through the limit head. By clamping workpieces of different sizes, the limit adjustment mechanism can rotate around the lifting mechanism so that the pressure block can rotate to the appropriate clamping position as needed. The positioning mechanism positions the rotation angle of the pressure block to prevent the workpiece from shifting during the clamping process and ensures the clamping accuracy and stability.

[0013] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of an end cap rotation positioning clamping fixture.

[0015] Figure 2 This is a partial schematic diagram of an end cap rotation positioning clamping fixture.

[0016] Figure 3 This is a schematic diagram of an end cap rotation positioning clamping fixture.

[0017] Reference numerals: Base 1, Support and fixing mechanism 2, Pressing mechanism 3, Mounting seat 31, First mounting platform 311, Second mounting platform 312, Lifting mechanism 32, Fixed column 321, Lifting guide rod 322, First spring 323, Pressure block 324, Nut 325, Limit adjustment mechanism 33, Rotating rod 331, Rotating connecting block 332, Limiting head 333, Positioning mechanism 334, Limiting ring 3341, Connecting rod 3342, Extrusion plate 3343, Rotation limiting block 3344, Connecting column 3345, Second spring 3346, First positioning tooth 3347, Second positioning tooth 3348, Guide groove 34. Detailed Implementation

[0018] To make the technical means, creative features, achieved objectives and functions of this utility model clearer and easier to understand, the utility model will be further described below with reference to the accompanying drawings and specific embodiments: like Figures 1 to 3As shown, this utility model proposes an end cap rotation positioning clamping fixture, including: a base 1, a support and retention mechanism 2, and a clamping mechanism 3. The support and retention mechanism 2 is mounted on the base 1 and is used to support the workpiece to be clamped. The clamping mechanism 3 is mounted next to the support and retention mechanism 2, and its output end can clamp the workpiece to be clamped. The clamping mechanism 3 includes: a mounting base 31, a lifting mechanism 32, and a limit adjustment mechanism 33. Both the lifting mechanism 32 and the limit adjustment mechanism 33 are mounted on the mounting base 31. The lifting end of the lifting mechanism 32 is used to clamp the workpiece to be clamped. The limit adjustment mechanism 33 is located on one side of the lifting mechanism 32 and can position the height and rotation angle of the lifting end of the lifting mechanism 32. When the workpiece to be clamped is placed on the support and retention mechanism 2, the support and retention mechanism 2 provides stable support for the workpiece. Then the clamping mechanism 3 starts to work. Through the lifting mechanism 32 on the mounting base 31, its lifting end performs lifting and lowering operations according to the height of the workpiece and the required clamping position. Meanwhile, the limit adjustment mechanism 33 is located on one side of the lifting mechanism 32. When the lifting end of the lifting mechanism 32 is adjusted to a suitable position, the limit adjustment mechanism 33 can position the height and rotation angle of the lifting end, ensuring that the clamping mechanism 3 can accurately and stably clamp the workpiece to be clamped.

[0019] The lifting mechanism 32 includes: a fixed column 321, a lifting guide rod 322, a first spring 323, a pressure block 324, and a nut 325. The fixed column 321 is connected to the mounting base 31. The lifting guide rod 322 is mounted on the fixed column 321. The pressure block 324 is slidably connected to the lifting guide rod 322. The first spring 323 is sleeved on the lifting guide rod 322 and located between the pressure block 324 and the base 1. The first spring 323 can keep the pressure block 324 away from the base 1. The nut 325 is threadedly connected to the lifting guide rod 322 and is located above the pressure block 324. The end of the pressure block 324 near the limit adjustment mechanism 33 is a clamping part, which is used to cooperate with the limit adjustment mechanism 33 to clamp the workpiece to be clamped. The end of the pressure block 324 away from the limit adjustment mechanism 33 is a limiting part, which can be acted upon by the limit adjustment mechanism 33. The pressure block 324 is sleeved on the lifting guide rod 322 and can slide up and down along the guide rod. The first spring 323 is sleeved on the lifting guide rod 322, located between the pressure block 324 and the base 1, and plays a rebound role, keeping the pressure block 324 away from the base 1. The nut 325 is threadedly connected to the lifting guide rod 322 and is located above the pressure block 324. The position of the pressure block 324 can be adjusted by rotating the nut 325. One end of the pressure block 324 is a clamping part, which cooperates with the limit adjustment mechanism 33 to clamp the workpiece; the other end is a limiting part, which is controlled by the limit adjustment mechanism 33. When it is necessary to clamp the workpiece, the pressure block 324 is pressed down to overcome the elastic force of the first spring 323, so that the clamping part is close to the workpiece. At the same time, the limiting part cooperates with the limit adjustment mechanism 33 to control the descent position and angle of the pressure block 324 to ensure precise clamping. When the workpiece is released, the nut 325 is reversed, and the first spring 323 rebounds, driving the pressure block 324 to reset.

[0020] Mounting base 31 includes a first mounting platform 311 and a second mounting platform 312. A lifting mechanism 32 is located on the first mounting platform 311, and a limit adjustment mechanism 33 is mounted on the second mounting platform 312. The lifting mechanism 32, positioned on the first mounting platform 311, utilizes a fixed column 321, a lifting guide rod 322, a first spring 323, a pressure block 324, and a nut 325 to achieve the up-and-down sliding of the pressure block 324 and the clamping and releasing of the workpiece. The second mounting platform 312 is equipped with the limit adjustment mechanism 33, which limits the limiting portion of the pressure block 324 in the lifting mechanism 32, thereby precisely controlling the height and rotation angle of the pressure block 324.

[0021] The limit adjustment mechanism 33 includes: a rotating rod 331, a rotating connecting block 332, a limit head 333, and a positioning mechanism 334. The second mounting base 31 has a positioning groove and a limit groove. There is a limit block between the positioning groove and the limit groove. The bottom end of the rotating rod 331 passes through the limit block and extends into the limit groove, and is fixedly connected to one end of the rotating connecting block 332. The other end of the rotating connecting block 332 is wrapped around the fixed column 321, and the rotating connecting block 332 can rotate relative to the fixed column 321. The upper end of the rotating rod 331 is connected to the limit head 333, and the limit head 333 is threadedly connected to the rotating rod 331. The positioning mechanism 334 is mounted on the rotating rod 331. The positioning mechanism 334 is located between the rotating connecting block 332 and the limit head 333. The positioning mechanism 334 can limit the rotation angle of the rotating rod 331 around the fixed column 321. The upper end of the rotating rod 331 is connected to a limiting head 333, which is threaded into it. The rotating limiting head 333 can move up and down along the rotating rod 331, changing its height to adapt to the clamping requirements of different workpieces. The positioning mechanism 334 is located between the rotating connecting block 332 and the limiting head 333, which can limit the rotation angle of the rotating rod 331 around the fixed column 321 and prevent the pressure block 324 from rotating excessively.

[0022] The positioning mechanism 334 includes: a limiting ring 3341, a connecting rod 3342, a pressing plate 3343, a rotation limiting block 3344, a connecting column 3345, a second spring 3346, a first positioning tooth 3347, and a second positioning tooth 3348. The limiting head 333 has an annular groove on its side, and the limiting ring 3341 surrounds the annular groove. One end of the connecting rod 3342 is connected to the limiting ring 3341, and the other end of the connecting rod 3342 is connected to the pressing plate 3343. The rotation limiting block 3344 is located in the positioning groove and has a C-shaped structure. The bottom end of the rotation limiting block 3344 is passed through by the rotating rod 331. The rotation limiting block 3344 contains a connecting post 3345. The extrusion plate 3343 is slidably connected to the connecting post 3345. The second spring 3346 is wrapped around the connecting post 3345, and one end of the second spring 3346 is connected to the upper end of the rotation limiting block 3344 and the extrusion plate 3343 respectively. The inner wall of the positioning groove is equipped with a first positioning tooth 3347. The end of the rotation limiting block 3344 near the rotating rod 331 is equipped with a second positioning tooth 3348. The first positioning tooth 3347 can mesh with the second positioning tooth 3348. The second spring 3346 can keep the first positioning tooth 3347 and the second positioning tooth 3348 disengaged. In the initial state, the first positioning tooth 3347 disengages from the second positioning tooth 3348. When the appropriate clamping angle is adjusted, the positioning block 324 twists the limiting head 333 to move upward, restricting the rotation of the block 324. The limiting ring 3341 moves upward with the limiting head 333. The pressing plate 3343 presses the limiting block 3344, causing the limiting block 3344 to move upward, so that the first positioning tooth 3347 and the second positioning tooth 3348 mesh, thereby restricting the rotation angle of the rotating rod 331. When the angle needs to be adjusted, the rotating limiting head 333 moves downward, so that the pressing plate 3343 pulls the second spring 3346 to move the limiting block 3344 downward, causing the first positioning tooth 3347 and the second positioning tooth 3348 to disengage from each other.

[0023] The connecting end of the rotating connecting block 332 and the rotating rod 331 is located in the limiting groove, which has an arc-shaped structure. When the first positioning tooth 3347 and the second positioning tooth 3348 disengage from each other, the rotating connecting block 332 can rotate around the fixed column 321 as the axis to adjust the angle at which the pressure block 324 is restricted.

[0024] The limiting block has an arc-shaped guide groove 34, through which the rotating rod 331 passes. When the pressure block 324 needs to rotate, the rotating rod 331 can rotate within the guide groove 34 about the fixed column 321 as the axis.

[0025] A stop is provided on one side of the bottom of the limiting part of the pressure block 324, and the stop can be blocked by the limiting head 333. The pressure block 324 can be restricted from rotating by the limiting head 333 through the stop.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A rotary positioning clamping fixture for end caps, characterized in that, include: The base (1), the support and fixing mechanism (2) and the clamping mechanism (3) are installed on the base (1). The support and fixing mechanism (2) is used to support the workpiece to be clamped. The clamping mechanism (3) is installed next to the support and fixing mechanism (2). The output end of the clamping mechanism (3) can clamp the workpiece to be clamped. The clamping mechanism (3) includes: a mounting base (31), a lifting mechanism (32), and a limit adjustment mechanism (33). The lifting mechanism (32) and the limit adjustment mechanism (33) are both mounted on the mounting base (31). The lifting end of the lifting mechanism (32) is used to clamp the workpiece to be clamped. The limit adjustment mechanism (33) is located on one side of the lifting mechanism (32). The limit adjustment mechanism (33) can position the height and rotation angle of the lifting end of the lifting mechanism (32).

2. The end cap rotation positioning clamping fixture according to claim 1, characterized in that, The lifting mechanism (32) includes: a fixed column (321), a lifting guide rod (322), a first spring (323), a pressure block (324), and a nut (325). The fixed column (321) is connected to the mounting base (31). The lifting guide rod (322) is mounted on the fixed column (321). The pressure block (324) is slidably connected to the lifting guide rod (322). The first spring (323) is sleeved on the lifting guide rod (322) and located between the pressure block (324) and the base (1). The first spring (323) can keep the pressure block (324) away from the base (1). The nut (325) is threadedly connected to the lifting guide rod (322). The nut (325) is located above the pressure block (324). The end of the pressure block (324) near the limit adjustment mechanism (33) is the clamping part. The clamping part is used to cooperate with the limit adjustment mechanism (33) to clamp the workpiece to be clamped. The end of the pressure block (324) away from the limit adjustment mechanism (33) is the limiting part. The limiting part can be acted upon by the limit adjustment mechanism (33).

3. The end cap rotation positioning clamping fixture according to claim 2, characterized in that, The mounting base (31) includes a first mounting platform (311) and a second mounting platform (312), a lifting mechanism (32) is located on the first mounting platform (311), and a limit adjustment mechanism (33) is installed on the second mounting platform (312).

4. The end cap rotation positioning clamping fixture according to claim 3, characterized in that, The limit adjustment mechanism (33) includes: a rotating rod (331), a rotating connecting block (332), a limit head (333), and a positioning mechanism (334). The second mounting base (31) has a positioning groove and a limit groove. There is a limit block between the positioning groove and the limit groove. The bottom end of the rotating rod (331) passes through the limit block and extends into the limit groove, and is fixedly connected to one end of the rotating connecting block (332). The other end of the rotating connecting block (332) is wrapped around the fixed column (321), and the rotating connecting... The connecting block (332) can rotate relative to the fixed column (321). The upper end of the rotating rod (331) is connected to a limiting head (333). The limiting head (333) is threadedly connected to the rotating rod (331). The rotating rod (331) is equipped with a positioning mechanism (334). The positioning mechanism (334) is located between the rotating connecting block (332) and the limiting head (333). The positioning mechanism (334) can limit the rotation angle of the rotating rod (331) around the fixed column (321).

5. The end cap rotation positioning clamping fixture according to claim 4, characterized in that, The positioning mechanism (334) includes: a limiting ring (3341), a connecting rod (3342), a pressing plate (3343), a rotation limiting block (3344), a connecting column (3345), a second spring (3346), a first positioning tooth (3347), and a second positioning tooth (3348). The limiting head (333) has an annular groove on its side, and the limiting ring (3341) surrounds the annular groove. One end of the connecting rod (3342) is connected to the limiting ring (3341), and the other end of the connecting rod (3342) is connected to the pressing plate (3343). The rotation limiting block (3344) is located in the positioning groove. The rotation limiting block (3344) has a C-shaped structure, and the bottom end of the rotation limiting block (3344) is passed through by the rotating rod (331). The limiting block (3344) contains a connecting post (3345), and the extrusion plate (3343) is slidably connected to the connecting post (3345). The second spring (3346) is wrapped around the connecting post (3345), and one end of the second spring (3346) is connected to the upper end of the limiting block (3344) and the extrusion plate (3343) respectively. The inner wall of the positioning groove is equipped with a first positioning tooth (3347), and the end of the limiting block (3344) near the rotating rod (331) is equipped with a second positioning tooth (3348). The first positioning tooth (3347) can mesh with the second positioning tooth (3348), and the second spring (3346) can keep the first positioning tooth (3347) and the second positioning tooth (3348) disengaged.

6. The end cap rotation positioning clamping fixture according to claim 5, characterized in that, The connecting end of the rotating connecting block (332) and the rotating rod (331) is located in the limiting groove, which is an arc-shaped structure.

7. The end cap rotation positioning clamping fixture according to claim 6, characterized in that, The limiting block has an arc-shaped guide groove (34), through which the rotating rod (331) passes.

8. The end cap rotation positioning clamping fixture according to claim 7, characterized in that, The bottom side of the limiting part of the pressure block (324) is provided with a stop block, which can be blocked by the limiting head (333).

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