Fixture for milling and drilling processes of mechanical parts
By designing clamping components with gears and worms in drilling and milling machine fixtures, the problem that the prior art cannot clamp the front and rear sides of the parts is solved, and the stable clamping of the parts and the improvement of machining accuracy is achieved.
Patent Information
- Application Number
- CN202420129537.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-18
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-01-18
AI Technical Summary
Existing drilling and milling machine fixtures cannot clamp the front and rear sides of the parts, resulting in the parts being easily shifted forward and backward during the processing process, affecting the processing effect.
A clamp including a base, a moving seat and a driving assembly is designed. Through the cooperation of gears and worms, the clamping side plates are driven to clamp the front and rear sides of the part to ensure the stability of the part.
It achieves uniform clamping of the front and rear sides of the part, avoids the front and back offset of the parts during the processing process, and improves the stability and accuracy of processing.
Smart Images
Figure CN222134124U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of clamps, in particular to a clamp used in the milling and drilling process of mechanical parts. Background Art
[0002] A drilling and milling machine is a machine tool that integrates drilling, milling, boring and grinding. It is used for processing small and medium-sized parts. When processing parts, the drilling and milling machine needs to clamp the parts, and the traditional fixture positioning effect is poor.
[0003] Prior art CN219053638U discloses a drilling and milling machine fixture, including a core table, a same connecting shaft is rotatably mounted on the inner walls of the front and rear sides of the hollow table, a gear is provided on the outer fixed sleeve of the connecting shaft, the outer top and outer bottom of the gear are meshed with racks, a U-shaped plate is fixedly mounted on the side away from each other of the two racks, a clamping plate is fixedly mounted on the side close to each other of the two U-shaped plates, a worm gear is provided on the outer fixed sleeve of the connecting shaft, a circular through hole is provided on one side of the hollow table, a worm is rotatably mounted in the circular through hole. The utility model has the following advantages and effects: the utility model has a reasonable design, and through the transmission of the worm and the worm wheel and the coordination of the gear and the rack, the two clamping plates can be driven to approach each other to achieve the clamping work of the device, and the clamping of the plug plate and the turntable can limit the self-rotation of the worm and improve the clamping stability.
[0004] The above device clamps the two sides of the part through two clamping plates, but cannot clamp the front and back sides of the part, which causes the part to easily deviate forward and backward during processing, affecting the processing. Utility Model Content
[0005] The utility model aims to provide a clamp for the milling and drilling process of mechanical parts, which solves the problem that the existing drilling and milling machine clamp cannot clamp the front and rear sides of the parts, causing the parts to easily deviate front and rear during the processing, thus affecting the processing.
[0006] To achieve the above-mentioned objectives, the utility model provides a fixture for the milling and drilling processes of mechanical parts, comprising a base, a movable base and a driving assembly, wherein the driving assembly is arranged on the base, the movable base is connected to the base through the driving assembly, and also comprises a clamping assembly; the clamping assembly comprises a clamping base, a gear column, a first rack, a second rack, a connecting rod and a clamping side plate, the clamping base is slidably connected to the movable base and is arranged on the movable base, the gear column is rotatably connected to the movable base and is located inside the movable base, the first rack is fixedly connected to the clamping base and meshes with the gear column and is located on one side of the clamping base, the connecting rod is slidably connected to the movable base and is located inside the movable base, the second rack is fixedly connected to the connecting rod and meshes with the gear column and is located on one side of the connecting rod, and the clamping side plate is fixedly connected to the connecting rod and is arranged on the connecting rod.
[0007] Wherein, the clamping seat has a movable groove, the movable groove is arranged on the clamping seat and passes through the clamping seat, and the movable groove cooperates with the connecting rod.
[0008] Among them, the clamping assembly also includes a connecting plate and a return spring, the connecting plate is fixedly connected to the clamping seat and is arranged on the clamping seat; one end of the return spring is connected to the movable seat, and the other end of the return spring is connected to the connecting plate, and the return spring is arranged on the movable seat.
[0009] Among them, the driving assembly includes a threaded sleeve and a bidirectional screw, the bidirectional screw is rotatably connected to the base and is located inside the base; the threaded sleeve is threadedly connected to the bidirectional screw, fixedly connected to the movable seat, and sleeved on the bidirectional screw.
[0010] Wherein, the driving assembly also includes a worm wheel and a worm, the worm wheel is fixedly connected to the bidirectional screw and is located at one end of the bidirectional screw; the worm is rotatably connected to the base, meshes with the worm wheel, and is located on one side of the base.
[0011] The utility model discloses a clamp for the milling and drilling process of mechanical parts. When in use, the part to be processed is placed between the two clamping seats, and then the two moving seats are driven to approach each other through the driving assembly, thereby driving the two clamping seats to approach each other. When the two clamping seats are in contact with the left and right sides of the part, the clamping seat and the first rack stop moving. At this time, the moving seat continues to drive the gear column to move. When the gear column moves on the first rack, it rotates, thereby causing the gear column to drive the second rack to move. The second rack drives the connecting rod and the clamping side plate to move, so that the two clamping side plates can be clamped on the front and back sides of the part. At this time, the front, back, left and right sides of the part are all clamped, thereby achieving clamping of the front and back sides of the part, avoiding the problem of front and back offset of the part during processing. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.
[0013] Figure 1 It is a schematic diagram of the overall structure of a fixture used in the milling and drilling process of mechanical parts according to the first embodiment of the utility model.
[0014] Figure 2 It is a schematic diagram of the installation structure of the gear column of the first embodiment of the utility model.
[0015] Figure 3 It is a schematic diagram of the installation structure of the worm gear in the second embodiment of the utility model.
[0016] Figure 4 It is a schematic diagram of the installation structure of the bidirectional screw of the second embodiment of the utility model.
[0017] In the figure: 101-base, 102-movable seat, 103-driving assembly, 104-clamping assembly, 105-clamping seat, 106-gear column, 107-first rack, 108-second rack, 109-connecting rod, 110-clamping side plate, 111-movable groove, 112-connecting plate, 113-reset spring, 201-bidirectional screw, 202-threaded sleeve, 203-worm wheel, 204-worm. DETAILED DESCRIPTION
[0018] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.
[0019] First embodiment:
[0020] See also Figure 1 and Figure 2 ,in Figure 1 This is a schematic diagram of the overall structure of the fixture used in the milling and drilling process of mechanical parts. Figure 2 It is a schematic diagram of the installation structure of the gear column.
[0021] The utility model provides a fixture for the milling and drilling process of mechanical parts, including a base 101, a movable base 102, a driving assembly 103 and a clamping assembly 104, wherein the clamping assembly 104 includes a clamping base 105, a gear column 106, a first rack 107, a second rack 108, a connecting rod 109, a clamping side plate 110, a connecting plate 112 and a reset spring 113, and the clamping base 105 has a movable groove 111, and the gear column 106 is driven to move by the movement of the movable base 102, so that the gear column 106 drives the second rack 108 to move, and then drives the connecting rod 109 and the clamping side plate 110 to move, so that the clamping side plate 110 can clamp the front and rear sides of the part. It can be understood that the above-mentioned scheme can be used when clamping and fixing the part, and can also be used to solve the problem that the existing drilling and milling machine fixture cannot clamp the front and rear sides of the part, resulting in the part being easily offset front and rear during the processing, affecting the processing.
[0022] According to this specific embodiment, the driving component 103 is arranged on the base 101, and the moving seat 102 is connected to the base 101 through the driving component 103. There are two moving seats 102, which are respectively located on the left and right sides of the base 101. The driving component 103 can drive the two moving seats 102 to move closer to or away from each other.
[0023] The clamping seat 105 is slidably connected to the moving seat 102 and is arranged on the moving seat 102. The gear column 106 is rotatably connected to the moving seat 102 and is located inside the moving seat 102. The first rack 107 is fixedly connected to the clamping seat 105 and meshes with the gear column 106 and is located on one side of the clamping seat 105. The connecting rod 109 is slidably connected to the moving seat 102 and is located inside the moving seat 102. The second rack 108 is fixedly connected to the clamping seat 105 and meshes with the gear column 106 and is located on one side of the clamping seat 105. The connecting rod 109 is fixedly connected and meshed with the gear column 106 and is located on one side of the connecting rod 109. The clamping side plate 110 is fixedly connected to the connecting rod 109 and is arranged on the connecting rod 109. The clamping assembly 104 is provided with two and is respectively arranged on the two moving seats 102. One of the clamping assemblies 104 is provided with two gear columns 106, two first racks 107, two second racks 108, two connecting rods 109 and The two clamping side plates 110 are located on the left and right sides of the clamping seat 105. When in use, the part to be processed is placed between the two clamping seats 105, and then the two moving seats 102 are driven to approach each other through the driving assembly 103, thereby driving the two clamping seats 105 to approach each other. When the two clamping seats 105 are in contact with the left and right sides of the part, the clamping seat 105 and the first rack 107 stop moving. At this time, the moving seat 102 continues to drive the gear column 106 to move. When the gear column 106 moves on the first rack 107, it rotates, thereby causing the gear column 106 to drive the second rack 108 to move. The second rack 108 drives the connecting rod 109 and the clamping side plates 110 to move, so that the two clamping side plates 110 can be clamped on the front and back sides of the part. At this time, the front, back, left and right sides of the part are all clamped, thereby achieving clamping of the front and back sides of the part, avoiding the problem of front and back offset of the part during processing.
[0024] Secondly, the movable groove 111 is arranged on the clamping seat 105 and passes through the clamping seat 105. The movable groove 111 cooperates with the connecting rod 109. Two movable grooves 111 are arranged, and the two movable grooves 111 cooperate with the two connecting rods 109. The movable groove 111 prevents the clamping seat 105 and the connecting rod 109 from interfering with each other, thereby preventing the clamping seat 105 from interfering with the movement of the connecting rod 109.
[0025] At the same time, the connecting plate 112 is fixedly connected to the clamping seat 105 and is arranged on the clamping seat 105; one end of the reset spring 113 is connected to the moving seat 102, and the other end of the reset spring 113 is connected to the connecting plate 112, and the reset spring 113 is arranged on the moving seat 102. Two connecting plates 112 and two reset springs 113 are arranged on one clamping seat 105. The reset spring 113 is a tension spring. When the clamping seat 105 clamps the part, the reset spring 113 is in a stretched state. In this way, after the moving seat 102 is reset, the clamping seat 105 and the connecting plate 112 can be reset under the action of the reset spring 113, thereby resetting the clamping side plate 110, which is convenient for taking out the part and clamping the next part.
[0026] When using the fixture for the milling and drilling process of mechanical parts of this embodiment, the part to be processed is placed between the two clamping seats 105, and the two moving seats 102 are driven to approach each other by the driving component 103, thereby driving the two clamping seats 105 to approach each other. When the clamping seat 105 abuts against the surface of the part, it stops moving, and the moving seat 102 continues to move. At this time, the moving seat 102 drives the gear column 106 to move, and the gear column 106 rotates when moving on the first rack 107, thereby driving the second rack 108 to move, so that the second rack 108 drives the connecting rod 109 and the clamping side plate 110 to move, so that the two clamping side plates 110 can be clamped on the front and back sides of the part. At this time, the left and right sides of the part are clamped by the two clamping seats 105, and the front and back sides of the part are clamped by the clamping side plates 110, thereby clamping the front and back sides of the part to avoid the problem of front and back offset of the part during processing.
[0027] Second embodiment:
[0028] Based on the first embodiment, please refer to Figure 3 and Figure 4 , Figure 3 is a schematic diagram of the installation structure of the worm gear of the second embodiment, Figure 4 2 is a schematic diagram of the installation structure of the bidirectional screw of the second embodiment. The drive assembly 103 of this embodiment includes a threaded sleeve 202 , a bidirectional screw 201 , a worm wheel 203 and a worm 204 .
[0029] According to this specific embodiment, the bidirectional screw 201 is rotatably connected to the base 101 and is located inside the base 101 ; the threaded sleeve 202 is threadedly connected to the bidirectional screw 201 , and is fixedly connected to the movable seat 102 , and is sleeved on the bidirectional screw 201 .
[0030] The worm wheel 203 is fixedly connected to the bidirectional screw 201 and is located at one end of the bidirectional screw 201 ; the worm 204 is rotationally connected to the base 101 , meshes with the worm wheel 203 , and is located at one side of the base 101 .
[0031] The threads on both sides of the bidirectional screw 201 are in opposite directions. Two threaded sleeves 202 are provided and are respectively located on both sides of the bidirectional screw 201. The rotation of the worm 204 drives the worm wheel 203 to rotate, so that the worm wheel 203 drives the bidirectional screw 201 to rotate, and then the bidirectional screw 201 drives the two threaded sleeves 202 to approach or move away from each other, thereby driving the two moving seats 102 to approach or move away from each other. The self-locking property between the worm wheel 203 and the worm 204 makes it impossible for the worm wheel 203 to drive the worm 204 to rotate, thereby increasing the stability of the bidirectional screw 201 and preventing the bidirectional screw 201 from rotating during the processing of the parts, resulting in loose clamping of the parts.
[0032] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.
Claims
1. A fixture for milling and drilling of mechanical parts, comprising a base, a movable base and a driving assembly, wherein the driving assembly is arranged on the base, and the movable base is connected to the base through the driving assembly, characterized in that: Also included is a clamping assembly; The clamping assembly includes a clamping seat, a gear column, a first rack, a second rack, a connecting rod and a clamping side plate. The clamping seat is slidably connected to the moving seat and is arranged on the moving seat. The gear column is rotatably connected to the moving seat and is located inside the moving seat. The first rack is fixedly connected to the clamping seat and meshes with the gear column and is located on one side of the clamping seat. The connecting rod is slidably connected to the moving seat and is located inside the moving seat. The second rack is fixedly connected to the connecting rod and meshes with the gear column and is located on one side of the connecting rod. The clamping side plate is fixedly connected to the connecting rod and is arranged on the connecting rod.
2. The fixture for the milling and drilling process of mechanical parts according to claim 1, characterized in that: The clamping seat has a moving groove, which is arranged on the clamping seat and passes through the clamping seat, and the moving groove cooperates with the connecting rod.
3. The fixture for the milling and drilling process of mechanical parts according to claim 1, characterized in that: The clamping assembly also includes a connecting plate and a return spring, wherein the connecting plate is fixedly connected to the clamping seat and is arranged on the clamping seat; one end of the return spring is connected to the moving seat, and the other end of the return spring is connected to the connecting plate, and the return spring is arranged on the moving seat.
4. The fixture for milling and drilling of mechanical parts according to claim 1, characterized in that: The driving assembly includes a threaded sleeve and a bidirectional screw, wherein the bidirectional screw is rotatably connected to the base and is located inside the base; the threaded sleeve is threadedly connected to the bidirectional screw, fixedly connected to the moving seat, and sleeved on the bidirectional screw.
5. The fixture for the milling and drilling process of mechanical parts according to claim 4, characterized in that: The driving assembly also includes a worm wheel and a worm, wherein the worm wheel is fixedly connected to the bidirectional screw and is located at one end of the bidirectional screw; the worm is rotatably connected to the base and meshes with the worm wheel and is located on one side of the base.