Mechanical seal milling groove positioning clamp

Abstract

The utility model belongs to the technical field of clamps, and particularly relates to a mechanical seal milling groove positioning clamp which comprises a placing plate and supporting legs, the supporting legs are fixedly installed on the periphery of the bottom of the placing plate, a clamping device is arranged on the top of the placing plate, and the clamping device comprises a switching unit and a clamping unit. The switching unit is arranged on the top of the containing plate, and the clamping unit is arranged below the switching unit. According to the mechanical seal groove milling positioning clamp, by arranging the switching unit, the corresponding clamping plates are adjusted according to the shape of a workpiece, when groove milling needs to be conducted on a plate, a second motor is started to drive an output shaft to rotate, the output shaft drives a fixing plate to rotate till the plane clamping plate rotates to the inner side of a containing plate, and similarly, an arc-shaped clamping plate can be rotated to the inner side of the containing plate; according to the device, groove milling of plates or shaft parts is achieved, the practicability of the device is improved, and the problems that in the background technology, the shaft parts cannot be clamped and machined in the using process, and the practicability is low are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a mechanical seal milling groove positioning clamp. Background Art

[0002] Fixture: A device used to fix the object to be processed in the mechanical manufacturing process so that it occupies the correct position for construction or inspection. Milling machines mainly refer to machine tools that use milling cutters to process various surfaces of workpieces. Usually, the milling cutter mainly moves in rotation, and moves in rotation. It can process planes, grooves, various curved surfaces, gears, etc. In the process of mechanical sealing, it is necessary to mill grooves on the surface of the workpiece.

[0003] When using a milling machine to mill grooves on a part, the part needs to be fixed. The existing milling machine fixture cannot turn the part over after fixing the part. When multiple sides of the part need to be milled, the part must be removed, turned over and then re-clamped for processing after each side is processed, which is inconvenient.

[0004] For example, a slot milling fixture disclosed in Chinese patent CN220612434U drives a clamping and fixing mechanism to move through a first hydraulic cylinder, so that two clamping and fixing mechanisms clamp the part to be processed, and then the clamping bolt is driven to rotate and move downward by rotating the handle, and the end of the part is clamped and fixed in the positioning shell by the clamping bolt, and then the transmission shaft and the mounting sleeve are clamped and fixed respectively by the two clamping mechanisms, so that the transmission shaft and the mounting sleeve cannot rotate, thereby improving the stability of the two clamping and fixing mechanisms, and then, the part is slotted by a milling machine. After one side of the part is processed, the clamping mechanism loosens the transmission shaft and the mounting sleeve so that they can rotate, and then, the clamping and fixing mechanism is driven to rotate by the flipping mechanism, and the part is turned over by the clamping and fixing mechanism, so that multiple sides of the part can be processed conveniently.

[0005] However, the device cannot be used to clamp shaft parts during use, and its practicality is low.

[0006] For this reason, we urgently need to provide a mechanical seal milling groove positioning fixture. Utility Model Content

[0007] The utility model aims to provide a mechanical seal milling groove positioning fixture to solve the problem of low practicality that shaft parts cannot be clamped and processed during use in the above-mentioned background technology.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a mechanical seal milling groove positioning fixture, comprising a placement plate and support legs, the support legs are fixedly installed around the bottom of the placement plate, and a clamping device is arranged on the top of the placement plate.

[0009] The clamping device comprises a switching unit and a clamping unit, wherein the switching unit is arranged on the top of the placement plate, and the clamping unit is arranged below the switching unit.

[0010] The switching unit includes a box body, motor 2, an output shaft, a limit plate, a bearing, a fixed plate, a plane clamp and an arc clamp. The box body is arranged on the left and right sides below the placement plate, the motor 2 is fixedly installed inside the box body, one end of the output shaft is fixedly installed on the output end of motor 2 and extends to the top of the placement plate, the limit plate is slidably connected to the inside of the placement plate and is located on the outside of the output shaft, the outer ring of the bearing is fixedly installed inside the limit plate, the fixed plate is fixedly installed on the top of the output shaft, the plane clamp is fixedly installed on one end of the fixed plate, and the arc clamp is fixedly installed on the end of the fixed plate away from the plane clamp.

[0011] Preferably, the clamping unit includes a motor 1, a threaded rod, a limit rod, a connecting plate, a bracket, a connecting piece and a connecting block. The motor 1 is arranged below the placement plate, one end of the threaded rod is fixedly installed on the output end of the motor 1, the limit rod is fixedly installed on the rear end of the bottom of the placement plate, the front and rear ends of the connecting plate are installed on the outside of the threaded rod and the limit rod, the bracket is fixedly installed on the left and right sides of the connecting plate, one end of the connecting piece is rotatably connected to the inside of the bracket, and the connecting block is fixedly installed on the bottom of the box.

[0012] Preferably, a rectangular through groove is opened inside the placing plate, and a limiting groove with the same width as the limiting plate is opened inside the rectangular through groove. The limiting groove limits the movement of the box body, so that the box body drives the output shaft to slide left and right along the limiting groove through the limiting plate, thereby clamping workpieces of different sizes.

[0013] Preferably, the middle portion of the output shaft is fixedly mounted on the inner ring of the bearing, and the bearing is used to reduce the friction between the output shaft and the limit plate, thereby facilitating the rotation of the output shaft.

[0014] Preferably, an internal thread is provided at the connection between the threaded rod and the connecting plate, and the connecting plate is threadedly connected to the threaded rod. The end of the connecting piece away from the bracket is rotatably connected to the connecting block, and is threadedly connected to the connecting plate through the threaded rod, so that the connecting plate moves up and down along the limit rod. When the connecting plate moves up and down, the connecting piece is driven to rotate around the connecting block and the bracket, thereby pushing or pulling the box to move left and right, so that the flat clamp or the arc clamp fixes the workpiece on the top of the placement plate.

[0015] Preferably, the switching units are symmetrically distributed on the left and right sides of the placement plate. When the connecting plate moves up and down, the left and right connecting members pull the left and right switching units to move in the same or opposite directions at the same time, fixing the workpiece at the top center of the placement plate to achieve positioning of the workpiece.

[0016] Preferably, a rubber pad is installed on the side of the plane clamping plate and the arc clamping plate away from the fixed plate, so as to prevent the plane clamping plate or the arc clamping plate from scratching the surface of the workpiece when clamping the workpiece.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The mechanical seal milling groove positioning fixture is provided with a switching unit to adjust the corresponding clamping plate according to the shape of the workpiece. When it is necessary to mill a groove on the plate, start the second motor to drive the output shaft to rotate, so that the output shaft drives the fixed plate to rotate until the flat clamping plate is rotated to the inside of the placement plate. Similarly, the arc clamping plate can be rotated to the inside of the placement plate to achieve milling of plates or shaft parts, improve the practicability of the device, and solve the problem of low practicability that the shaft parts cannot be clamped and processed during use as proposed in the background technology.

[0019] 2. The mechanical seal milling groove positioning fixture is provided with a clamping unit, and a motor is started to drive the threaded rod to rotate, so that the threaded rod drives the connecting plate to move down along the limiting rod, so that the connecting piece rotates around the bracket and the connecting block while pulling the box body to slide left and right along the limiting groove through the limiting plate until the left and right two flat clamping plates abut against the two sides of the workpiece, and fix the workpiece at the top center of the placement plate. The fixing method is simple and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a structural split diagram of the switching unit of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the clamping unit of the utility model;

[0023] Figure 4 It is a schematic diagram of the internal structure of the placement plate of the utility model.

[0024] In the figure: 1. placement plate; 2. support leg; 301. motor 1; 302. threaded rod; 303. limit rod; 304. connecting plate; 305. bracket; 306. connecting piece; 307. connecting block; 401. box; 402. motor 2; 403. output shaft; 404. limit plate; 405. bearing; 406. fixing plate; 407. plane clamp; 408. arc clamp. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-Figure 4 , the utility model provides a technical solution:

[0027] Embodiment 1:

[0028] A mechanical seal milling groove positioning fixture comprises a placement plate 1 and support legs 2. The support legs 2 are fixedly installed around the bottom of the placement plate 1 to support the placement plate 1. A clamping device is arranged on the top of the placement plate 1.

[0029] The clamping device includes a switching unit and a clamping unit. The switching unit is arranged at the top of the placement plate 1. The switching units are symmetrically distributed on the left and right sides of the placement plate 1. When the connecting plate 304 moves up and down, the left and right connecting members 306 pull the left and right switching units to move in the same or opposite directions at the same time, thereby fixing the workpiece at the top center of the placement plate 1 to achieve the positioning of the workpiece. The clamping unit is arranged below the switching unit.

[0030] The switching unit includes a box body 401, a motor 2 402, an output shaft 403, a limit plate 404, a bearing 405, a fixing plate 406, a plane clamping plate 407 and an arc clamping plate 408. The box body 401 is arranged on the left and right sides below the placement plate 1, the motor 2 402 is fixedly installed inside the box body 401, one end of the output shaft 403 is fixedly installed on the output end of the motor 2 402 and extends to the top of the placement plate 1, the limit plate 404 is slidably connected to the inside of the placement plate 1 and is located on the outside of the output shaft 403, a rectangular through groove is opened inside the placement plate 1, and a limit groove equal to the width of the limit plate 404 is opened inside the rectangular through groove, and the box body 401 is fixedly installed inside the box body 401, and the output shaft 403 is fixedly installed on the output end of the motor 2 402 and extends to the top of the placement plate 1, and the limit plate 404 is slidably connected to the inside of the placement plate 1 and is located on the outside of the output shaft 403. A rectangular through groove is opened inside the placement plate 1, and a limit groove equal to the width of the limit plate 404 is opened inside the rectangular through groove. The movement of the body 401 plays a limiting role, so that the box body 401 drives the output shaft 403 to slide left and right along the limiting groove through the limiting plate 404, and clamps workpieces of different sizes. The outer ring of the bearing 405 is fixedly installed inside the limiting plate 404, and the middle part of the output shaft 403 is fixedly installed on the inner ring of the bearing 405. The friction between the output shaft 403 and the limiting plate 404 is reduced by the bearing 405, which facilitates the rotation of the output shaft 403. The fixed plate 406 is fixedly installed on the top of the output shaft 403, the plane clamping plate 407 is fixedly installed on one end of the fixed plate 406, and the arc clamping plate 408 is fixedly installed on the end of the fixed plate 406 away from the plane clamping plate 407.

[0031] The clamping unit includes a motor 301, a threaded rod 302, a limiting rod 303, a connecting plate 304, a bracket 305, a connecting piece 306 and a connecting block 307. The motor 301 is arranged below the placement plate 1. One end of the threaded rod 302 is fixedly installed on the output end of the motor 301. An internal thread is provided at the connection between the threaded rod 302 and the connecting plate 304, and the connecting plate 304 is threadedly connected to the threaded rod 302. One end of the connecting piece 306 away from the bracket 305 is rotatably connected to the connecting block 307, and is threadedly connected to the connecting plate 304 through the threaded rod 302, so that the connecting plate 304 moves up and down along the limiting rod 303. When moving up and down, the connecting member 306 is driven to rotate around the connecting block 307 and the bracket 305, thereby pushing or pulling the box body 401 to move left and right, so that the plane clamping plate 407 or the arc clamping plate 408 fixes the workpiece on the top of the placement plate 1, and the limiting rod 303 is fixedly installed at the rear end of the bottom of the placement plate 1, and the movement of the connecting plate 304 is limited by the limiting rod 303. The front and rear ends of the connecting plate 304 are installed on the outer sides of the threaded rod 302 and the limiting rod 303, and the bracket 305 is fixedly installed on the left and right sides of the connecting plate 304. One end of the connecting member 306 is rotatably connected to the inside of the bracket 305, and the connecting block 307 is fixedly installed at the bottom of the box body 401.

[0032] Embodiment 2:

[0033] On the basis of the first embodiment: a rubber pad is installed on the side of the plane clamping plate 407 and the arc clamping plate 408 away from the fixed plate 406, and the rubber pad prevents the plane clamping plate 407 or the arc clamping plate 408 from scratching the workpiece surface when clamping the workpiece.

[0034] When in use, the workpiece to be milled is placed on the top of the placement plate 1, and the corresponding clamping plate is adjusted according to the shape of the workpiece. When it is necessary to mill a groove for the plate, start the second motor 402 to drive the output shaft 403 to rotate, so that the output shaft 403 drives the fixed plate 406 to rotate until the plane clamping plate 407 rotates to the inside of the placement plate 1, and then start the first motor 301 to drive the threaded rod 302 to rotate, so that the threaded rod 302 drives the connecting plate 304 to move down along the limiting rod 303, so that the connecting member 306 rotates around the bracket 305 and the connecting block 307 while pulling the box body 401 to slide left and right along the limiting groove through the limiting plate 404 until the left and right two plane clamping plates 407 abut against the two sides of the workpiece, and fix the workpiece to the top center of the placement plate 1. When it is necessary to mill a groove for shaft parts, start the second motor 402 to drive the output shaft 403 to rotate, so that the output shaft 403 drives the fixed plate 406 to rotate until the arc clamping plate 408 rotates to the inside of the placement plate 1, and the shaft workpiece is clamped in the same way.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A mechanical seal milling groove positioning fixture, comprising a placement plate (1) and support legs (2), wherein the support legs (2) are fixedly mounted around the bottom of the placement plate (1), characterized in that: A clamping device is provided on the top of the placement plate (1); The clamping device comprises a switching unit and a clamping unit, wherein the switching unit is arranged on the top of the placement plate (1), and the clamping unit is arranged below the switching unit; The switching unit comprises a box (401), a second motor (402), an output shaft (403), a limit plate (404), a bearing (405), a fixing plate (406), a plane clamping plate (407) and an arc clamping plate (408); the box (401) is arranged on the left and right sides below the placement plate (1); the second motor (402) is fixedly installed inside the box (401); one end of the output shaft (403) is fixedly installed on the output end of the second motor (402) and extends to the placement plate (1). The limiting plate (404) is slidably connected to the inside of the placing plate (1) and is located outside the output shaft (403); the outer ring of the bearing (405) is fixedly installed inside the limiting plate (404); the fixing plate (406) is fixedly installed on the top of the output shaft (403); the plane clamping plate (407) is fixedly installed on one end of the fixing plate (406); and the arc clamping plate (408) is fixedly installed on one end of the fixing plate (406) away from the plane clamping plate (407).

2. A mechanical seal milling groove positioning fixture according to claim 1, characterized in that: The clamping unit comprises a motor (301), a threaded rod (302), a limiting rod (303), a connecting plate (304), a bracket (305), a connecting piece (306) and a connecting block (307); the motor (301) is arranged below the placement plate (1); one end of the threaded rod (302) is fixedly mounted on the output end of the motor (301); the limiting rod (303) is fixedly mounted on the rear end of the bottom of the placement plate (1); the front and rear ends of the connecting plate (304) are mounted on the outside of the threaded rod (302) and the limiting rod (303); the bracket (305) is fixedly mounted on the left and right sides of the connecting plate (304); one end of the connecting piece (306) is rotatably connected to the inside of the bracket (305); and the connecting block (307) is fixedly mounted on the bottom of the box body (401).

3. A mechanical seal milling groove positioning fixture according to claim 1, characterized in that: A rectangular through groove is provided inside the placement plate (1), and a limiting groove having the same width as that of the limiting plate (404) is provided inside the rectangular through groove.

4. A mechanical seal milling groove positioning fixture according to claim 1, characterized in that: The middle portion of the output shaft (403) is fixedly mounted on the inner ring of the bearing (405).

5. The mechanical seal milling groove positioning fixture according to claim 2, characterized in that: The connection between the threaded rod (302) and the connecting plate (304) is provided with an internal thread, and the connecting plate (304) and the threaded rod (302) are threadedly connected, and one end of the connecting member (306) away from the bracket (305) is rotatably connected to the connecting block (307).

6. The mechanical seal milling groove positioning fixture according to claim 1, characterized in that: The switching units are symmetrically distributed on the left and right sides of the placement plate (1).

7. The mechanical seal milling groove positioning fixture according to claim 1, characterized in that: A rubber pad is installed on one side of the plane clamping plate (407) and the arc clamping plate (408) away from the fixing plate (406).

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