Clamp for machining

Abstract

The utility model discloses a clamp for machining, and relates to the technical field of machining. Comprising a workbench, two connecting frames are fixed to the top end of the workbench, sliding rods are slidably connected to the two connecting frames, threaded rods are connected to the sliding rods in a threaded mode, connecting plates are movably connected to the ends, close to each other, of the two threaded rods, and fixing mechanisms are arranged on the sides, close to each other, of the two connecting plates; the fixing mechanism comprises a connecting sleeve fixed to one side of the connecting plate, two fixing plates are fixed to one side of the connecting plate, and two moving plates are slidably connected to the connecting plate. Compared with the prior art, by pressing the pressing sleeve, the movable plate drives the spring to be compressed, the inserting piece is made to move, then the inserting piece is not inserted into the inserting hole in the fixing piece any more, the clamping plate can be taken down, then the fixing piece on the new or well maintained clamping plate is inserted into the connecting sleeve, and in the inserting process, the pressing sleeve is pressed, so that the pressing sleeve can be detached. And the pressing sleeve is loosened until the fixing piece is inserted, so that fixation is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing, in particular to a clamp for mechanical processing. Background Art

[0002] Machining refers to the process of changing the size or performance of a workpiece by a mechanical device. During the machining process, the workpiece needs to be clamped so that drilling, grinding, polishing and other operations can be performed on the workpiece. The clamping process requires the use of a fixture. An existing machining fixture (Announcement No.: CN109894891A) has the following disadvantages in use:

[0003] During use, the screw is rotated by rotating the handle to move the screw along the sleeve toward the workpiece, so that the two clamping plates firmly clamp the workpiece. However, during the long-term grinding process, the surfaces of the two clamping plates will be worn, resulting in the clamping being not very firm. At this time, the clamping plate needs to be replaced, but the screw and the clamping plate are connected by a universal ball joint support, which is inconvenient to disassemble. For this reason, this patent proposes a mechanical processing fixture to solve the above problem. Utility Model Content

[0004] The purpose of the utility model is to provide a mechanical processing fixture to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a mechanical processing fixture comprises a workbench, two connecting frames are fixed on the top of the workbench, the two connecting frames are slidably connected with sliding rods, the sliding rods are screwed with threaded rods, the ends of the two threaded rods close to each other are movably connected with connecting plates, and a fixing mechanism is provided on the side where the two connecting plates are close to each other, the fixing mechanism comprises a connecting sleeve fixed on one side of the connecting plate, two fixing plates are fixed on one side of the connecting plate, two movable plates are slidably connected on the connecting plate, a spring is fixed between the movable plate and the fixed plate, a pressing sleeve is fixed on the end of the movable plate away from the spring, the pressing sleeve passes through the connecting sleeve, a plug-in is fixed on one side of the movable plate, a fixing piece is inserted in the connecting sleeve, the outer wall of the fixing piece contacts with the inner wall of the connecting sleeve, two jacks are provided on the fixing piece, the plug-in is inserted in the jacks, and a splint is fixed on one side of the fixing piece.

[0006] Preferably, the fixing mechanism also includes a limiting rod fixed between the inner walls at both ends of the connecting plate, the limiting rod passes through the fixing plate, the spring and the pressing sleeve are located outside the limiting rod, a baffle is fixed between the inner walls at both ends of the connecting sleeve, a sliding opening is opened on the baffle, and the plug-in slides in the sliding opening.

[0007] Preferably, a moving mechanism is provided at the bottom end of the workbench, and the moving mechanism includes two mounting plates fixed at the bottom end of the workbench, a rotating shaft is rotatably connected between the two mounting plates, gears are fixed to the outer walls at both ends of the rotating shaft, a rack is fixed to one side of the sliding rod, the sliding rod and the rack both pass through the workbench, the rack is meshed with the gear, a motor is fixed to one side of one of the mounting plates, the motor has a self-locking function, and the output end of the motor passes through the mounting plate and is fixed to the end of the rotating shaft.

[0008] Preferably, a connecting port is provided on the connecting frame, the sliding rod is T-shaped, the sliding rod is adapted to the connecting port, a fixing sleeve is fixed to one side of the sliding rod, and the threaded rod and the fixing sleeve are threadedly connected.

[0009] Preferably, a first protective sleeve is fixed to the other side of the connecting plate, and a second protective sleeve is slidably connected to the outer wall of the first protective sleeve.

[0010] Preferably, a magnetic block is fixed on one side of the clamping plate, and the second protective cover and the magnetic block are magnetically attracted to each other.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The difference between this machining fixture and the prior art is that by pressing the pressing sleeve, the movable plate drives the spring to be compressed, so that the plug-in moves, and then it is no longer inserted into the socket on the fixing part. In this way, the splint can be removed, and then the fixing part on the new or repaired splint can be inserted into the connecting sleeve. During the insertion process, the pressing sleeve is pressed until the fixing part is inserted and then the pressing sleeve is released to fix it. This makes it convenient to replace and maintain the splint, and the operation is relatively simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the disassembly of the utility model;

[0015] Figure 3 It is a schematic diagram of the first partial structure of the utility model;

[0016] Figure 4 It is a schematic diagram of the second partial structure of the utility model.

[0017] In the figure: 1. workbench; 2. moving mechanism; 201. mounting plate; 202. rotating shaft; 203. gear; 204. motor; 205. rack; 3. connecting frame; 4. sliding rod; 5. fixing sleeve; 6. threaded rod; 7. connecting plate; 8. fixing mechanism; 801. connecting sleeve; 802. pressing sleeve; 803. moving plate; 804. spring; 805. limiting rod; 806. fixing plate; 807. plug-in; 9. fixing piece; 10. splint; 11. socket; 12. first protective sleeve; 13. second protective sleeve. DETAILED DESCRIPTION

[0018] 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.

[0019] During the machining process, the workpiece needs to be clamped so that operations such as drilling, grinding, and polishing can be performed on the workpiece. The machining fixture provided by the utility model is specifically used for clamping the workpiece. During the clamping operation using this device, it is ensured in advance that the motor 204 can work normally, thereby ensuring the normal operation of the equipment.

[0020] like Figure 1-Figure 4 As shown, the utility model provides a technical solution: a mechanical processing fixture, including a workbench 1, two connecting frames 3 are fixed on the top of the workbench 1, the two connecting frames 3 are slidably connected with sliding rods 4, the sliding rods 4 are screwed with threaded rods 6, the ends of the two threaded rods 6 close to each other are movably connected with connecting plates 7, the sides of the two connecting plates 7 close to each other are provided with fixing mechanisms 8, the fixing mechanisms 8 include a connecting sleeve 801 fixed on one side of the connecting plate 7, two fixing plates 806 are fixed on one side of the connecting plate 7, and the connecting plate 7 is provided with a fixing mechanism 8. Two movable plates 803 are connected to the upper slide, a spring 804 is fixed between the movable plate 803 and the fixed plate 806, a pressing sleeve 802 is fixed to the end of the movable plate 803 away from the spring 804, the pressing sleeve 802 penetrates the connecting sleeve 801, a plug-in 807 is fixed to one side of the movable plate 803, a fixing member 9 is inserted into the connecting sleeve 801, the outer wall of the fixing member 9 contacts the inner wall of the connecting sleeve 801, two plug holes 11 are provided on the fixing member 9, the plug-in 807 is inserted into the plug holes 11, and a clamping plate 10 is fixed to one side of the fixing member 9. The fixing mechanism 8 also includes a limiting rod 805 fixed between the inner walls at both ends of the connecting plate 7, the limiting rod 805 penetrates the fixed plate 806, the spring 804 and the pressing sleeve 802 are located outside the limiting rod 805, a baffle is fixed between the inner walls at both ends of the connecting sleeve 801, a sliding opening is provided on the baffle, and the plug-in 807 slides in the sliding opening.

[0021] It should be noted that by pressing the pressing sleeve 802, the movable plate 803 drives the spring 804 to be compressed, so that the plug-in 807 moves, and then it is no longer inserted into the socket 11 on the fixing member 9, so that the splint 10 can be removed, which is convenient for replacement and maintenance of the splint 10, and the operation is relatively simple and convenient.

[0022] like Figure 1 As shown, a moving mechanism 2 is provided at the bottom end of the workbench 1, and the moving mechanism 2 includes two mounting plates 201 fixed at the bottom end of the workbench 1, and a rotating shaft 202 is rotatably connected between the two mounting plates 201, and gears 203 are fixed to the outer walls of both ends of the rotating shaft 202, and a rack 205 is fixed to one side of the sliding rod 4. The sliding rod 4 and the rack 205 both pass through the workbench 1, and the rack 205 is meshed with the gear 203. A motor 204 is fixed to one side of one of the mounting plates 201, and the motor 204 has a self-locking function. The output end of the motor 204 passes through the mounting plate 201 and is fixed to the end of the rotating shaft 202.

[0023] It should be noted that by starting the motor 204, the motor 204 drives the rotating shaft 202 to rotate, and during the rotation of the rotating shaft 202, it drives the gear 203 to rotate, and the gear 203 drives the rack 205 to move, and then drives the sliding rod 4 and the splint 10 to move, so that it is convenient to adjust the height of the splint 10 according to the size of the workpiece.

[0024] like Figure 4 As shown, a connection port is provided on the connection frame 3, the sliding rod 4 is T-shaped, the sliding rod 4 is adapted to the connection port, a fixing sleeve 5 is fixed to one side of the sliding rod 4, and the threaded rod 6 is screwed to the fixing sleeve 5. A first protective sleeve 12 is fixed to the other side of the connection plate 7, and a second protective sleeve 13 is slidably connected to the outer wall of the first protective sleeve 12. A magnetic suction block is fixed to one side of the clamping plate 10, and the second protective sleeve 13 and the magnetic suction block are magnetically attracted to each other.

[0025] It should be noted that the first protective sleeve 12 protects the threaded rod 6 exposed outside the fixing sleeve 5, and the second protective sleeve 13 protects the pressing sleeve 802. When not in use, the pressing sleeve 802 is protected by attracting the second protective sleeve 13 and the splint 10.

[0026] Working principle: When the splint 10 needs to be replaced, by pressing the pressing sleeve 802, the movable plate 803 drives the spring 804 to be compressed, so that the plug-in 807 moves, and then it is no longer inserted into the socket 11 on the fixing part 9. In this way, the splint 10 can be removed, and then the fixing part 9 on the new or repaired splint 10 is inserted into the connecting sleeve 801, and the fixing part 9 just contacts the inner wall of the connecting sleeve 801. During the insertion process, the pressing sleeve 802 is pressed until the fixing part 9 is inserted and then the pressing sleeve 802 is released to fix it. This makes it convenient to replace and maintain the splint 10, and the operation is relatively simple and convenient.

[0027] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is limited by the attached embodiments and their equivalents.

Claims

1. A mechanical processing fixture, comprising a workbench (1), characterized in that: Two connecting frames (3) are fixed on the top of the workbench (1), and the two connecting frames (3) are slidably connected to sliding rods (4), and the sliding rods (4) are screwed with threaded rods (6), and the ends of the two threaded rods (6) close to each other are movably connected to connecting plates (7), and the sides of the two connecting plates (7) close to each other are provided with fixing mechanisms (8), and the fixing mechanisms (8) include a connecting sleeve (801) fixed to one side of the connecting plate (7), and two fixing plates (806) are fixed to one side of the connecting plate (7), and two movable plates (803) are slidably connected to the connecting plate (7), and the movable plate (8 A spring (804) is fixed between the movable plate (803) and the fixed plate (806); a pressing sleeve (802) is fixed to one end of the movable plate (803) away from the spring (804); the pressing sleeve (802) passes through the connecting sleeve (801); a plug-in (807) is fixed to one side of the movable plate (803); a fixing member (9) is inserted into the connecting sleeve (801); the outer wall of the fixing member (9) contacts the inner wall of the connecting sleeve (801); two insertion holes (11) are provided on the fixing member (9); the plug-in (807) is inserted into the insertion holes (11); and a clamping plate (10) is fixed to one side of the fixing member (9).

2. A mechanical processing fixture according to claim 1, characterized in that: The fixing mechanism (8) further comprises a limiting rod (805) fixed between the inner walls at both ends of the connecting plate (7), the limiting rod (805) passes through the fixing plate (806), the spring (804) and the pressing sleeve (802) are located outside the limiting rod (805), a baffle is fixed between the inner walls at both ends of the connecting sleeve (801), a sliding opening is provided on the baffle, and the plug-in (807) slides in the sliding opening.

3. A mechanical processing fixture according to claim 1, characterized in that: A moving mechanism (2) is arranged at the bottom end of the workbench (1), and the moving mechanism (2) comprises two mounting plates (201) fixed at the bottom end of the workbench (1), a rotating shaft (202) is rotatably connected between the two mounting plates (201), gears (203) are fixed to the outer walls at both ends of the rotating shaft (202), a rack (205) is fixed to one side of the sliding rod (4), the sliding rod (4) and the rack (205) both pass through the workbench (1), and the rack (205) is meshed with the gear (203), a motor (204) is fixed to one side of one of the mounting plates (201), the motor (204) has a self-locking function, and the output end of the motor (204) passes through the mounting plate (201) and is fixed to the end of the rotating shaft (202).

4. A mechanical processing fixture according to claim 1, characterized in that: The connecting frame (3) is provided with a connecting port, the sliding rod (4) is T-shaped, the sliding rod (4) is adapted to the connecting port, a fixing sleeve (5) is fixed on one side of the sliding rod (4), and the threaded rod (6) and the fixing sleeve (5) are screwed together.

5. A mechanical processing fixture according to claim 1, characterized in that: A first protective sleeve (12) is fixed to the other side of the connecting plate (7), and a second protective sleeve (13) is slidably connected to the outer wall of the first protective sleeve (12).

6. A mechanical processing fixture according to claim 1, characterized in that: A magnetic attraction block is fixed on one side of the clamping plate (10), and the second protective sleeve (13) and the magnetic attraction block are magnetically attracted to each other.

Images