Novel machining fixing clamp
By introducing the design of forward and reverse screw clamping mechanism, limit C-shaped groove and support mechanism into the traditional fixture, the problem of poor accuracy and stability of traditional fixtures during processing is solved, and workpieces of various shapes are realized The stable clamping and efficient machining reduce the risk of deformation and damage of the workpiece.
Patent Information
- Application Number
- CN202421086079.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-18
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-05-18
AI Technical Summary
Traditional fixing fixtures have poor accuracy and stability during processing, which can easily lead to deformation or damage to the workpiece, and workers have high labor intensity and low production efficiency. Heavy workpieces are prone to falling off when fixed or unfixed, causing damage.
A new type of machining fixture is designed, using forward and reverse screw clamping mechanism, limit C-shaped groove and C-shaped groove plate, support mechanism and linear sliding track mechanism, which can be clamped in the horizontal and vertical directions of the workpiece, and Increase stability through the support mechanism, reduce clamping force, and avoid slippage and fall.
It realizes stable clamping of workpieces of various shapes, improves processing accuracy and stability, reduces the risk of deformation and damage of workpieces, and reduces the labor intensity and production time of workers.
Smart Images
Figure CN222290092U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of processing and fixing equipment, in particular to a novel processing and fixing fixture. Background Art
[0002] In the machinery industry, especially fitters, mechanical parts of different materials and shapes are often processed manually. Usually, hand files and hand saws are used, or electric tools such as angle grinders, rotary files, hand drills and other tools are used to assist in processing the workpiece. In this type of processing, fixed fixtures are usually used to clamp the workpiece. A fixture refers to a device used to fix the processing object in the mechanical manufacturing process to ensure its correct and stable position to accept different processing methods.
[0003] In the process of fixing the workpiece, traditional fixing fixtures are commonly used. Most of them are fixed manually by vises, and the fixed object is usually fixed by two planes. Especially when fixing cylindrical workpieces, only one direction can be fixed by clamping the two planes. If the cylindrical workpiece is to be prevented from sliding in the other direction, the clamping force needs to be increased. When the workpiece is fixed with increased force, it is easy to cause deformation or damage of the workpiece, and it is not easy to replace the fixture when it is damaged. This fixing method has poor accuracy and stability, and the labor intensity of workers is high and the production efficiency is low in this process. At the same time, when clamping and fixing heavier workpieces, the worker needs to hold the workpiece with one hand and drive the fixture to move with the other hand when fixing or releasing the workpiece, which increases the labor burden of the worker. At the same time, the workpiece may fall from the inside of the device when it is released, causing damage to the device and the workpiece. Utility Model Content
[0004] In view of the deficiencies in the prior art, the utility model provides a new type of processing fixing fixture to solve the problems that the above-mentioned fixing method has poor accuracy and stability, and the labor intensity of workers is high and the production efficiency is low in the process. At the same time, when clamping and fixing heavier workpieces, the workpiece needs to be supported by one hand of the worker and the other hand to drive the fixture to move when fixing or releasing the workpiece, which increases the labor burden of the worker. At the same time, the workpiece may fall from the inside of the device when being released, causing damage to the device and the workpiece.
[0005] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a new type of processing and fixing fixture, comprising: a base frame, the top of the base frame is connected with a forward and reverse screw clamping mechanism, the forward and reverse screw clamping mechanism includes a bidirectional screw, both ends of the bidirectional screw are threadedly connected with nuts, the top of the nut is fixedly connected with a clamping jaw, the front and back surfaces of the clamping jaw are provided with limited C-shaped grooves, and the inner top and bottom of the clamping jaw are connected with C-shaped groove plates.
[0006] The front and back sides of the clamp are connected to a supporting mechanism, which includes a T-shaped arm, a slotted block is slidably connected to the bottom of the T-shaped arm, the slotted block is connected to the base frame, a C-shaped ring is fixedly connected to the top of the T-shaped arm, both ends of the T-shaped arm are connected to an inclined rod through a hinge, and the other end of the inclined rod is connected to the clamp through a hinge.
[0007] Preferably, a T-shaped support platform is connected to the top of the base frame, and grooves are provided at opposite ends of the two clamps, and the grooves fit with the T-shaped support platform. The grooves can prevent the two clamps from conflicting with the T-shaped support platform when closing, and the T-shaped support platform can support the vertically placed workpiece.
[0008] Preferably, a crank is sleeved on the right side of the outside of the bidirectional screw rod, and both ends of the outside of the bidirectional screw rod are connected to limit seats through bearings, and the limit seats are connected to the base frame. The limit seats can support the bidirectional screw rod, and the crank makes it convenient for the staff to drive the bidirectional screw rod to rotate. At the same time, the crank can also be replaced with a drive motor, and the motor is used to drive the bidirectional screw rod to rotate.
[0009] Preferably, both ends of the top of the base frame are connected to a linear sliding track mechanism, and the linear sliding track mechanism includes a track slider and a guide slide rail. The guide slide rail is fixedly connected to the top of the base frame, and the track slider is slidably connected to the top of the guide slide rail. The top of the track slider is connected to the bottom of the clamp, and the track slider cooperates with the guide slide rail to guide the nut so that the nut moves linearly.
[0010] Preferably, a reinforcing rib is fixedly connected to the bottom of the slotted block, and the reinforcing rib is connected to the base frame. The reinforcing rib can support the slotted block and increase the bearing capacity of the slotted block.
[0011] Preferably, a rubber sleeve is embedded inside the C-shaped ring, and rollers are connected to the inner bottom of the C-shaped ring at equal intervals through seat bearings, and the rubber sleeve can prevent wear between the C-shaped ring and the workpiece. The roller can prevent the C-shaped ring from moving outside the workpiece and driving the workpiece to move together through friction.
[0012] Compared with the prior art, the utility model provides a new processing and fixing fixture, which has the following beneficial effects:
[0013] The novel processing and fixing fixture can process the workpiece in both horizontal and vertical directions by means of the added limiting C-shaped groove and C-shaped groove plate, and is suitable for processing workpieces of various shapes, such as cylinders, squares and polygons, and simultaneously applies force to both sides of the workpiece when clamping the workpiece to avoid the problem of slipping during processing due to the workpiece not being clamped in the center. The added supporting mechanism and T-shaped supporting table can support and limit the workpiece before it is clamped, and the workpiece will be away from the central processing position of the workpiece when being clamped to avoid affecting the processing of the workpiece. After the workpiece is clamped and fixed, both ends of the workpiece can be supported to increase the stability of the workpiece and reduce the force exerted by the workpiece on the positive and negative screw clamping mechanisms. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a front schematic diagram of the utility model;
[0015] Figure 2 It is a partial front view schematic diagram of the utility model;
[0016] Figure 3 This is a front view schematic diagram of the positive and negative screw clamping mechanism of the utility model;
[0017] Figure 4 This is a front schematic diagram of the linear sliding track mechanism of the utility model;
[0018] Figure 5 It is a front schematic diagram of the support mechanism of the utility model.
[0019] In the figure: 1. base frame; 11. T-shaped support platform; 2. positive and negative screw clamping mechanism; 21. bidirectional screw; 211. crank; 212. limit seat; 22. nut; 23. clamping claw; 24. limit C-shaped groove; 25. C-shaped groove plate; 26. groove; 3. linear sliding track mechanism; 31. track slider; 32. guide slide rail; 4. support mechanism; 41. T-shaped arm; 42. slotted block; 43. reinforcing rib; 44. C-shaped ring; 45. roller; 46. rubber sleeve; 47. diagonal rod. DETAILED DESCRIPTION
[0020] 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.
[0021] The utility model provides a technical solution, please refer to Figure 1 and Figure 2A new type of processing and fixing fixture includes: a base frame 1, which is welded by square tubes and has a trapezoidal structure. It has extremely strong stability. A 280*430 steel plate is welded on the upper surface of the base frame 1. The function of this steel plate is to install a positive and negative screw clamping mechanism 2 and a linear sliding track mechanism 3. The top of the base frame 1 is connected with a positive and negative screw clamping mechanism 2. The positive and negative screw clamping mechanism 2 includes a bidirectional screw 21. Both sides of the outside of the bidirectional screw 21 are provided with threads, and the two threads rotate in opposite directions, so that when the bidirectional screw 21 rotates, it can drive the two nuts 22 to move relative to each other or move away from each other.
[0022] Both ends of the bidirectional screw rod 21 are threadedly connected with nuts 22, and the nut 22 can move by rotating the bidirectional screw rod 21. The top of the nut 22 is fixedly connected with a clamping jaw 23, and the front and back sides of the clamping jaw 23 are provided with limited C-shaped grooves 24. The inner top and bottom of the clamping jaw 23 are connected with C-shaped groove plates 25. The clamping jaw 23, the limited C-shaped groove 24 and the C-shaped groove plate 25 in the forward and reverse screw clamping mechanism 2 can cooperate to achieve horizontal or vertical clamping of the workpiece.
[0023] A T-shaped support platform 11 is connected to the top of the base frame 1, and grooves 26 are provided at opposite ends of the two clamping jaws 23, and the grooves 26 are matched with the T-shaped support platform 11. The grooves 26 can prevent the two clamping jaws 23 from conflicting with the T-shaped support platform 11 when closing. At the same time, the T-shaped support platform 11 can support the vertically placed workpiece. A crank 211 is sleeved on the outer right side of the bidirectional screw rod 21, and both ends of the outer side of the bidirectional screw rod 21 are connected to the limiting seats 212 through bearings, and the limiting seats 212 are connected to the base frame 1. The limiting seats 212 can support the bidirectional screw rod 21, and the crank 211 is convenient for the staff to drive the bidirectional screw rod 21 to rotate. At the same time, the crank 211 can be replaced with a driving motor, and the motor is used to drive the bidirectional screw rod 21 to rotate.
[0024] Both ends of the top of the base frame 1 are connected to a linear sliding track mechanism 3, which includes a track slider 31 and a guide slide 32. The guide slide 32 is fixedly connected to the top of the base frame 1, and the track slider 31 is slidably connected to the top of the guide slide 32. The top of the track slider 31 is connected to the bottom of the clamp 23. The track slider 31 cooperates with the guide slide 32 to guide the nut 22 so that the nut 22 can move linearly.
[0025] See also Figure 3 , Figure 4 and Figure 5The front and back sides of the clamp 23 are connected to a supporting mechanism 4, which includes a T-shaped arm 41, which can support the workpiece. The bottom of the T-shaped arm 41 is slidably connected to a slotted block 42, and the top of the slotted block 42 is provided with a sliding groove, which can guide and slide the T-shaped arm 41. The slotted block 42 is connected to the base frame 1, and the top of the T-shaped arm 41 is fixedly connected to a C-shaped ring 44, which can support the workpiece.
[0026] Both ends of the T-shaped arm 41 are connected to an inclined rod 47 through a hinge. The inclined rod 47 can transmit the T-shaped arm 41 when the two clamps 23 move relative to each other, and the other end of the inclined rod 47 is connected to the clamp 23 through a hinge. The bottom of the slotted block 42 is fixedly connected with a reinforcing rib 43, and the reinforcing rib 43 is connected to the bottom frame 1. The reinforcing rib 43 can support the slotted block 42 and increase the bearing capacity of the slotted block 42. A rubber sleeve 46 is embedded in the C-shaped ring 44. The inner bottom of the C-shaped ring 44 is connected to rollers 45 at equal intervals through seat bearings. The rubber sleeve 46 can prevent the C-shaped ring 44 from wearing and abrading the workpiece. The roller 45 can prevent the C-shaped ring 44 from moving outside the workpiece and driving the workpiece to move together through friction.
[0027] In this solution, the workpiece to be clamped is first placed inside the C-shaped ring 44, and the bidirectional screw 21 is driven to rotate by the crank 211, which drives the two nuts 22 to move relative to each other, so that the workpiece is clamped and fixed by the clamping jaws 23. At the same time, when the two clamping jaws 23 move closer to each other, they will drive the inclined rod 47 to transmit, and then drive the T-shaped arm 41 to move away from the clamping jaws 23, so as to prevent the workpiece from being affected by the supporting mechanism 4 during processing. At the same time, the supporting mechanism 4 can support both ends of the workpiece to increase the stability of the workpiece during processing;
[0028] By means of the additional limiting C-shaped groove 24 and C-shaped groove plate 25, the workpiece can be processed in both the horizontal and vertical directions, and it is suitable for processing workpieces of various shapes, such as cylindrical, square and polygonal shapes, and force is applied to both sides of the workpiece at the same time when clamping the workpiece to avoid the problem of slipping during processing due to the workpiece not being clamped in the center. By means of the additional supporting mechanism 4 and T-shaped supporting platform 11, the workpiece is supported and limited before being clamped, and the workpiece will be away from the central processing position of the workpiece when being clamped to avoid affecting the workpiece processing. After the workpiece is clamped and fixed, both ends of the workpiece can be supported to increase the stability of the workpiece and reduce the force exerted by the workpiece on the positive and negative screw clamping mechanism 2.
[0029] 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.
[0030] Although embodiments of the present invention have been shown and described, it will be appreciated 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 that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A new type of processing fixture, comprising: A base frame (1), characterized in that: a forward and reverse screw clamping mechanism (2) is connected to the top of the base frame (1), the forward and reverse screw clamping mechanism (2) comprises a bidirectional screw (21), both ends of the bidirectional screw (21) are threadedly connected to nuts (22), the top of the nut (22) is fixedly connected to a clamping claw (23), the front and back surfaces of the clamping claw (23) are provided with limited C-shaped grooves (24), and the top and bottom of the inside of the clamping claw (23) are connected to C-shaped groove plates (25); The front and back sides of the clamping jaw (23) are both connected to a support mechanism (4), the support mechanism (4) comprising a T-shaped arm (41), the bottom of the T-shaped arm (41) being slidably connected to a slotted block (42), the slotted block (42) being connected to the base frame (1), the top of the T-shaped arm (41) being fixedly connected to a C-shaped ring (44), both ends of the T-shaped arm (41) being connected to an inclined rod (47) via a hinge, and the other end of the inclined rod (47) being connected to the clamping jaw (23) via a hinge.
2. According to claim 1, the novel processing and fixing fixture is characterized in that: The top of the base frame (1) is connected to a T-shaped support platform (11), and opposite ends of the two clamping claws (23) are provided with grooves (26), and the grooves (26) fit in with the T-shaped support platform (11).
3. According to the new processing and fixing fixture of claim 1, it is characterized in that: A crank (211) is sleeved on the right side of the exterior of the bidirectional screw rod (21), and both ends of the exterior of the bidirectional screw rod (21) are connected to a limit seat (212) via bearings, and the limit seat (212) is connected to the base frame (1).
4. According to claim 1, the novel processing and fixing fixture is characterized in that: Both ends of the top of the base frame (1) are connected to a linear sliding track mechanism (3), the linear sliding track mechanism (3) comprising a track slider (31) and a guide slide rail (32), the guide slide rail (32) is fixedly connected to the top of the base frame (1), the track slider (31) is slidably connected to the top of the guide slide rail (32), and the top of the track slider (31) is connected to the bottom of the clamping claw (23).
5. The novel processing and fixing fixture according to claim 1 is characterized in that: A reinforcing rib (43) is fixedly connected to the bottom of the slotted block (42), and the reinforcing rib (43) is connected to the bottom frame (1).
6. The novel processing and fixing fixture according to claim 1 is characterized in that: A rubber sleeve (46) is embedded inside the C-shaped ring (44), and rollers (45) are connected to the inner bottom of the C-shaped ring (44) at equal intervals via seat bearings.