Mechanical part clamping device based on vertical machining center

Abstract

The utility model belongs to the technical field of vertical machining centers, and particularly relates to a mechanical part clamping device based on a vertical machining center, which comprises a machining table, a plurality of sliding grooves are annularly formed in the machining table, a limiting rod extending in the radial direction is fixed on the inner side of each sliding groove, a sliding block is slidably sleeved on the outer side of each limiting rod, and the sliding blocks are arranged in the sliding grooves. The sliding blocks slide in the sliding grooves in a clamped mode and are driven by a driving assembly, a clamping and positioning assembly is arranged above each sliding block, each clamping and positioning assembly comprises an installation box and a fixing column, the installation boxes are fixedly installed at the upper ends of the sliding blocks, two transverse rods are fixed to the inner sides of the two ends of each installation box respectively, and a movable plate is arranged between the two transverse rods in a sliding and sleeving mode. And springs are arranged between the four corners of the movable plate and the inner side walls of the mounting box for connection, two guide grooves are formed in the upper end face of the movable plate, and two jacking columns used for jacking the mechanical parts are slidably connected into the two guide grooves through fixing columns correspondingly.

Description

Technical Field

[0001] This utility model belongs to the technical field of vertical machining centers, and in particular relates to a clamping device for mechanical parts based on a vertical machining center. Background Technology

[0002] A vertical machining center is a type of CNC machine tool mainly used for machining complex parts such as plates, discs, molds, and small shells. It can perform milling, boring, drilling, tapping, and thread cutting operations. The vertical machining center also has an internal clamping device for fixing mechanical parts to ensure their stability during machining.

[0003] Chinese utility model patent CN221984862U discloses a clamping device for the production of mechanical parts. By manipulating a moving block to move upward along a connecting frame and then manipulating a moving plate to rotate along a moving rod, the manipulating pin passes through a fixed tube and abuts against the moving rod. This makes it easier for operators to adjust the parts inside the device according to the processing position, preventing the need for repositioning during the change of processing position, reducing the number of times the operator needs to reposition and fix the workpiece, and further enhancing the effectiveness of the parts inside the device during operation.

[0004] However, the aforementioned clamping devices are bulky and have limited applicability, making them unsuitable for clamping irregularly shaped mechanical parts. Furthermore, the elasticity of springs leads to weak and unstable clamping force, causing mechanical parts to easily shift during machining processes such as cutting. Therefore, there is an urgent need to improve existing clamping devices for mechanical parts and provide a stable clamping device for mechanical parts based on a vertical machining center. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of the existing technology by providing a reasonably designed, simple, widely applicable, and more stable clamping device for mechanical parts based on a vertical machining center, thereby solving the problems existing in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A clamping device for mechanical parts based on a vertical machining center includes a machining table. The machining table has multiple annular grooves inside. A radially extending limiting rod is fixed to the inner side of each groove. A slider is slidably fitted onto the outer side of the limiting rod. The slider engages and slides within the groove and is driven by a driving assembly. A clamping and positioning assembly is located above each slider. The clamping and positioning assembly includes a mounting box and fixed posts. The mounting box is fixedly installed on the upper end of the slider. Two crossbars are fixed to the inner sides of both ends of the mounting box. A movable plate is slidably fitted between the two crossbars. Springs connect the four corners of the movable plate to the inner wall of the mounting box. Two guide grooves are formed on the upper surface of the movable plate. Two top posts for clamping the mechanical parts are slidably connected to the two guide grooves via the fixed posts.

[0008] Preferably, a positioning base plate is provided directly below the processing table, and several support columns are fixed in a ring between the outer edges of the processing table and the positioning base plate.

[0009] Preferably, the outer edge of the positioning base plate is provided with multiple bolt holes, which are spaced apart from the multiple support columns.

[0010] Preferably, the drive assembly is disposed between the positioning base plate and the processing table.

[0011] Preferably, the drive assembly includes a motor, a connecting plate, a fixing rod, and a pull rod. The motor is fixedly installed at the center of the upper end face of the positioning base plate. The output end of the motor is fixedly connected to the connecting plate. Multiple fixing rods are welded in a ring around the periphery of the connecting plate. Multiple pull rods are respectively hinged to the ends of the multiple fixing rods away from the connecting plate. The other ends of the multiple pull rods are respectively hinged to the bottom end face of multiple sliders.

[0012] Preferably, four springs are respectively fitted onto the outer sides of the left and right ends of the two crossbars.

[0013] Preferably, the two guide slots on each movable plate are arranged symmetrically from left to right, and the distance between the two guide slots decreases from back to front.

[0014] Preferably, the fixing column extends longitudinally, with its bottom end slidably connected in the guide groove and its upper end connected to the top column.

[0015] As a preferred option, the two top columns are linked together via a movable plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] In this invention, the device is small in size and suitable for various types of vertical machining centers. When clamping mechanical parts, the motor can be directly started to control the connecting plate and multiple fixed rods to rotate. The slider is pulled along the limit rod by the pull rod, and multiple sets of clamping and positioning components slide and retract synchronously toward the center of the machining table, so as to center and clamp the mechanical parts. The operation is simple and quick, easy to operate, and the clamping force is higher and the clamping is more stable.

[0018] In the process of controlling the retraction of the clamping and positioning assembly, when one of the top posts comes into contact with the mechanical part, the slider drives the clamping and positioning assembly to continue moving, allowing the top post to slide relative to the mounting box. The fixed post can also press the guide groove on the upper surface of the movable plate, causing the movable plate to slide along the crossbar. At this time, the movable plate can press the other fixed post and push the other top post to extend outward relative to the mounting box until it comes into contact with the mechanical part. Compared with the prior art and other existing technologies, this clamping device can also be applied to the positioning of irregularly shaped mechanical parts, with a wider range of applications and stronger practicality. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. The drawings are described as follows:

[0020] Figure 1 This is a three-dimensional top view of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the three-dimensional left-side cross-sectional structure of this utility model;

[0022] Figure 3 This is a bottom view of the overall structure of the drive assembly of this utility model;

[0023] Figure 4 This is a top view of the overall structure of the clamping and positioning component of this utility model;

[0024] Figure 5 This is a schematic diagram of the working structure of the top column of this utility model;

[0025] Figure 6 This is a top view of the working clamping structure of this utility model.

[0026] In the picture:

[0027] 1. Positioning base plate; 2. Support column; 3. Bolt hole; 4. Machining table; 5. Slide groove; 6. Limiting rod; 7. Slider; 8. Drive assembly; 81. Motor; 82. Connecting plate; 83. Fixing rod; 84. Pull rod; 9. Clamping and positioning assembly; 91. Mounting box; 92. Crossbar; 93. Movable plate; 94. Spring; 95. Top column; 96. Fixing column. Detailed Implementation

[0028] The embodiments described below are merely some embodiments of the present invention and do not represent all embodiments consistent with the present invention. Exemplary embodiments will now be described with reference to the accompanying drawings:

[0029] like Figure 1-6 As shown in the figure, the present invention relates to a clamping device for mechanical parts based on a vertical machining center, which includes a positioning base plate 1, a machining table 4 located directly above the positioning base plate 1, a plurality of support columns 2 fixed in a ring between the outer edges of the machining table 4 and the positioning base plate 1, a driving assembly 8 located between the middle of the positioning base plate 1 and the machining table 4, a plurality of sliding grooves 5 formed in a ring inside the machining table 4, a limiting rod 6 extending radially fixed on the inner side of each sliding groove 5, a slider 7 slidably sleeved on the outer side of the limiting rod 6, the slider 7 engaging and sliding within the sliding groove 5, and a clamping and positioning assembly 9 installed above each slider 7, the plurality of clamping and positioning assemblies 9 being driven by the driving assembly 8 to cooperate with each other to clamp the mechanical parts.

[0030] As a preferred embodiment, based on the above structure, a plurality of bolt holes 3 are further provided on the outer edge of the positioning base plate 1, and the plurality of bolt holes 3 are arranged at intervals with the plurality of support columns 2.

[0031] In this embodiment, multiple support columns 2 are used to provide stable support for the machining table 4 and the mechanical parts to be processed, and multiple bolt holes 3 are provided to facilitate the fixed installation of the device in the vertical machining center.

[0032] In a preferred embodiment, based on the above structure, the drive assembly 8 further includes a motor 81, a connecting plate 82, a fixing rod 83, and a pull rod 84. The motor 81 is fixedly installed at the center of the upper end face of the positioning base plate 1. The output end of the motor 81 is fixedly connected to the connecting plate 82. Multiple fixing rods 83 are welded in a ring around the periphery of the connecting plate 82. Multiple pull rods 84 are respectively hinged to one end of the multiple fixing rods 83 away from the connecting plate 82. The other end of the pull rods 84 is respectively hinged to the bottom end face of multiple sliders 7.

[0033] In this embodiment, by controlling the rotation of the connecting plate 82 and multiple fixing rods 83, the slider 7 can be pulled by the pull rod 84, which facilitates the synchronous sliding and retraction of multiple sets of clamping and positioning components 9, and facilitates the centered positioning and clamping of mechanical parts.

[0034] In a preferred embodiment, based on the above structure, the clamping and positioning assembly 9 further includes a mounting box 91, a crossbar 92, a movable plate 93, a spring 94, a top post 95, and a fixed post 96. The mounting box 91 is fixedly mounted on the upper end of the slider 7. Two crossbars 92 arranged vertically and radially are fixed on the inner sides of the front and rear ends of the mounting box 91, respectively. Springs 94 are sleeved on the outer sides of the left and right ends of each crossbar 92. The movable plate 93 is provided on the inner side of the mounting box 91. The front and rear ends of the movable plate 93 are slidably sleeved on the outer sides of the two crossbars 92, respectively. The springs 94 are located between the movable plate 93 and the inner sidewall of the mounting box 91. The top post 95 is fixed to the fixed post 96 through one end near the inside of the mounting box 91. The top post 95 is slidably connected to the mounting box 91 through the fixed post 96.

[0035] As a preferred embodiment, based on the above structure, the upper surface of the movable plate 93 is further provided with two left-right symmetrical guide grooves, the distance between the two guide grooves decreasing from back to front, and the bottom ends of the two fixed columns 96 are respectively guided and slid in the two guide grooves.

[0036] As a preferred embodiment, based on the above structure, the two top posts 95 are symmetrically arranged about the mounting box 91, the two top posts 95 are linked together by the movable plate 93, and the extension and retraction directions of the two top posts 95 are always opposite.

[0037] In this embodiment, the movable plate 93 facilitates the reverse sliding of the two top posts 95 in the same set of clamping and positioning components 9 until both top posts 95 are in contact with the outer wall of the mechanical parts. This makes the clamping device suitable for positioning irregularly shaped mechanical parts, with a wider range of applications and stronger practicality.

[0038] The working principle of this utility model is as follows:

[0039] In use, the clamping device is first fixedly installed in the designated position in the vertical machining center using fasteners such as anchor bolts. Then, the mechanical parts to be processed are placed above the center of the machining table 4. The motor 81 is then started to control the connecting plate 82 and the fixing rod 83 to rotate. The slider 7 and the clamping and positioning components 9 can be pulled synchronously along the limit rod 6 by the pull rod 84. Multiple sets of clamping and positioning components 9 are controlled to slide and retract, which facilitates the centered positioning and clamping of the mechanical parts. The operation is simple, quick and easy.

[0040] When the drive assembly 8 drives multiple sets of clamping and positioning assemblies 9 to retract for clamping and positioning mechanical parts, when one of the top posts 95 of the clamping and positioning assembly 9 abuts against the outer wall of the mechanical part, as the clamping and positioning assembly 9 continues to move, the top post 95 can slide and retract towards the inside of the mounting box 91. It can also press the guide groove on the upper surface of the movable plate 93 through the fixed post 96, causing the movable plate 93 to slide along the crossbar 92. This also presses against another fixed post 96, controlling the other top post 95 to extend outward relative to the mounting box 91 until both top posts 95 abut against the outer wall of the mechanical part. Figure 6 As shown, the three sets of clamping and positioning components 9 operate in the same state as above. Compared with the prior art, this clamping device can also be applied to the clamping and positioning of irregularly shaped mechanical parts, with a wider range of applications, stronger practicality, higher clamping force, and more stable clamping.

[0041] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Any equivalent changes, modifications, substitutions, and variations made by those skilled in the art based on the concept of this utility model and on the basis of existing technology through logical analysis, reasoning, or limited experiments shall be within the scope of protection defined by the claims.

Claims

1. A clamping device for mechanical accessories based on a vertical machining center, comprising a machining table (4), characterized by: The inside of the processing table (4) is annularly provided with a plurality of sliding grooves (5), the inner side of each sliding groove (5) is fixedly provided with a limiting rod (6) extending in the radial direction, the outer side of the limiting rod (6) is slidably sleeved with a sliding block (7), the sliding block (7) is clamped and slid in the sliding groove (5) and is driven by a driving assembly (8), the upper side of each sliding block (7) is provided with a clamping and positioning assembly (9), the clamping and positioning assembly (9) comprises a mounting box (91) and a fixed column (96), the mounting box (91) is fixedly installed at the upper end of the sliding block (7), the inner side of both ends of the mounting box (91) is fixedly provided with two cross rods (92), the movable plate (93) is slidably sleeved between the two cross rods (92), the spring (94) is connected between the four corners of the movable plate (93) and the inner side wall of the mounting box (91), two guide grooves are formed in the upper end surface of the movable plate (93), and two jacking columns (95) for jacking mechanical accessories are slidably connected in the two guide grooves through the fixed column (96).

2. A mechanical fitting clamping device based on a vertical machining center according to claim 1, characterized in that: The lower side of the processing table (4) is provided with a positioning bottom plate (1), and the outer edges of the processing table (4) and the positioning bottom plate (1) are annularly fixed with a plurality of support columns (2).

3. A mechanical fitting clamping device based on a vertical machining center according to claim 2, characterized in that: A plurality of bolt holes (3) are also formed in the outer edge position of the positioning bottom plate (1), and the plurality of bolt holes (3) and the plurality of support columns (2) are arranged in a spaced manner.

4. A mechanical fitting clamping device based on a vertical machining center according to claim 2, characterized in that: The driving assembly (8) is arranged between the middle portions of the positioning bottom plate (1) and the processing table (4).

5. A mechanical fitting clamping device based on a vertical machining center according to claim 2, characterized in that: The driving assembly (8) comprises a motor (81), a connecting disc (82), a fixed rod (83) and a pull rod (84), the motor (81) is fixedly installed at the center of the upper end surface of the positioning bottom plate (1), the output end of the motor (81) is fixedly connected with the connecting disc (82), a plurality of fixed rods (83) are annularly welded on the circumferential side of the connecting disc (82), a plurality of pull rods (84) are respectively hinged at the ends of the plurality of fixed rods (83) away from the connecting disc (82), and the other ends of the plurality of pull rods (84) are respectively hinged to the bottom end surfaces of the plurality of sliding blocks (7).

6. A mechanical fitting clamping device based on a vertical machining center according to claim 1, characterized in that: Four springs (94) are sleeved on the outer sides of the left and right ends of the two cross rods (92).

7. A mechanical fitting clamping device based on a vertical machining center according to claim 1, characterized in that: The two guide grooves on each movable plate (93) are symmetrically arranged, and the distance between the two guide grooves is arranged in a decreasing manner from back to front.

8. A mechanical fitting clamping device based on a vertical machining center according to claim 1, characterized in that: The fixed column (96) extends in the longitudinal direction, the bottom end of the fixed column (96) is slidably connected in the guide groove, and the upper end of the fixed column (96) is connected with the jacking column (95).

9. A mechanical fitting clamping device based on a vertical machining center according to claim 1, characterized in that: The two jacking columns (95) are interconnected through the movable plate (93).

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