Novel adjustable clamp

Abstract

The utility model provides a novel adjustable clamp which comprises a connecting rod, a fixing base and a clamping base, the fixing base and the clamping base are fixedly installed on the connecting rod, and a workpiece is clamped through the fixing base and the clamping base. The clamping base comprises connecting plates fixedly connected to the two sides of the connecting rod, a fixing shaft arranged between the two connecting plates and an eccentric sleeve connected to the outer side of the fixing shaft in a sleeving mode, one side of the eccentric sleeve protrudes outwards to form an arc-shaped protruding part, a handle is further fixed to the eccentric sleeve, and the handle rotates the eccentric sleeve by a user. The workpiece clamping device is provided with the fixed seat and the eccentric sleeve which is rotationally arranged, after a workpiece is placed between the fixed seat and the clamping seat, the workpiece can be clamped and fixed through the arc-shaped protruding part on the eccentric sleeve by slightly rotating the handle, the structure is simple, operation is convenient, and the workpiece clamping efficiency can be effectively improved.

Description

Technical Field

[0001] The utility model belongs to the field of mechanical processing and manufacturing, in particular to a novel adjustable clamp. Background Art

[0002] Clamps are mostly used in mechanical processing (for example, welding, cutting, etc.), manufacturing, and handling processes. The main function of the clamp is to fix the workpiece to facilitate processing, handling, and other operations on the workpiece.

[0003] Most of the current clamps are relatively complex in structure, not only heavy in weight, but also costly. Moreover, most of the current clamps are screw-type clamps, which clamp the workpiece by rotating the screw. Most of these clamps require a large number of screw rotations to clamp the workpiece, so the clamping efficiency is low. Utility Model Content

[0004] In view of this, the utility model aims to provide a novel adjustable clamp, in order to solve at least one of the above-mentioned technical problems.

[0005] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0006] A novel adjustable clamp comprises a connecting rod, and a fixing seat and a clamping seat fixedly mounted on the connecting rod, and a workpiece is clamped by the fixing seat and the clamping seat;

[0007] The clamping seat includes connecting plates fixedly connected to both sides of the connecting rod and a fixed shaft arranged between the two connecting plates, and an eccentric sleeve sleeved on the outside of the fixed shaft. One side of the eccentric sleeve bulges outward to form an arc-shaped protrusion. A handle is also fixed on the eccentric sleeve, and the handle is used by the user to rotate the eccentric sleeve.

[0008] In one of the embodiments, a U-shaped plate is further provided on the clamping seat;

[0009] The U-shaped plate includes side plates on both sides and a tightening plate arranged between the side plates on both sides;

[0010] Two side plates are arranged on the outside of the connecting plate. The side plates are provided with strip holes. Limiting bolts are arranged in the strip holes. The outer diameter of the limiting bolts is smaller than the inner diameter of the strip holes. The limiting bolts are fixedly connected to the fixed shaft.

[0011] In one of the embodiments, a first anti-slip leather pad is further provided on one side of the tightening plate adjacent to the fixing seat.

[0012] In one embodiment, the fixing seat comprises a C-shaped steel, and the C-shaped steel is fixed to the outside of the connecting rod by fixing bolts;

[0013] An L-shaped plate is welded on the outer side of the C-shaped steel; the L-shaped plate includes a horizontal plate and a vertical plate, the horizontal plate is welded and fixed to the C-shaped steel, and the vertical plate is arranged on one side of the horizontal plate adjacent to the clamping seat;

[0014] A pad is provided on one side of the vertical plate adjacent to the clamping seat.

[0015] In one embodiment, the pad includes a rigid pad and a second anti-skid leather pad; the rigid pad is fixedly connected to the second anti-skid leather pad;

[0016] A fine-tuning screw is provided at a section of the rigid pad adjacent to the vertical plate, a through hole corresponding to the fine-tuning screw is provided on the vertical plate, two fixing nuts are provided on the fine-tuning screw, and the two fixing nuts are respectively arranged on both sides of the vertical plate. The distance between the pad and the clamping seat is adjusted by the fine-tuning screw.

[0017] In one embodiment, the number of the fine-tuning screws is two.

[0018] In one of the embodiments, a right-angle reinforcing plate is further provided between the horizontal plate and the vertical plate, and the right-angle reinforcing plate is fixedly connected to the vertical plate and the horizontal plate.

[0019] In one embodiment, the connecting rod is square steel;

[0020] The connecting rod is provided with a plurality of position adjustment holes corresponding to the fixing bolts, and the position of the fixing seat is adjusted through the position adjustment holes.

[0021] Compared with the prior art, the novel adjustable clamp described in the utility model has the following beneficial effects:

[0022] (1) The new adjustable clamp described in the utility model has a fixed seat and a rotatably arranged eccentric sleeve. After the workpiece is placed between the fixed seat and the clamping seat, the workpiece can be clamped and fixed by the arc-shaped protrusion on the eccentric sleeve by slightly turning the handle. Not only is the structure simple, but the operation is also convenient, and the clamping efficiency of the workpiece can be effectively improved.

[0023] (2) The clamping seat is provided with a U-shaped plate. The structural design of the U-shaped plate makes it possible for the eccentric sleeve to contact the workpiece directly without the need for direct contact with the workpiece when clamping the workpiece. Instead, the eccentric sleeve contacts the workpiece through the first anti-slip leather pad on the U-shaped plate, and the line contact between the arc-shaped protrusion and the workpiece is transformed into surface contact (if there is no U-shaped plate, the eccentric sleeve needs to contact the workpiece directly when clamping the workpiece. During clamping, the arc-shaped protrusion and the workpiece are in line contact. After the U-shaped plate is added, the first anti-slip leather pad directly contacts the workpiece, which is surface contact). This not only increases the contact area between the clamping seat and the workpiece, but also increases the anti-slip performance of the clamping seat. In addition, the first anti-slip leather pad has a certain elasticity, and the contact with the workpiece is soft, which increases the smoothness of the rotation of the eccentric sleeve. If there is no first anti-slip leather pad, a large force is required to rotate the eccentric sleeve into place, which may also cause deformation of the workpiece.

[0024] (3) The new adjustable clamp described in the utility model has a pad on the fixed seat, and the pad has a second anti-slip leather pad and a rigid pad. The rigid pad is connected to the vertical plate on the fixed seat by a fine-tuning screw. The micro-distance between the pad and the clamping seat can be fine-tuned by two fixing nuts on the fine-tuning screw, thereby adjusting the clamping degree for the workpiece.

[0025] (4) The connecting rod of the novel adjustable clamp described in the utility model is provided with a position adjustment hole. Compared with the fine-tuning screw, the position adjustment hole can greatly adjust the distance between the fixing seat and the clamping seat to adapt to workpieces of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0027] Figure 1 This is a schematic diagram of the overall structure of the new adjustable clamp described in the embodiment of the utility model;

[0028] Figure 2 This is a schematic diagram of the structure of the new adjustable clamp according to the embodiment of the utility model when clamping a workpiece;

[0029] Figure 3 This is a cross-sectional view of the eccentric sleeve described in the embodiment of the utility model;

[0030] Figure 4 This is a schematic diagram of the structure of the U-shaped plate according to an embodiment of the utility model;

[0031] Figure 5 It is a structural schematic diagram of the pad described in an embodiment of the utility model.

[0032] Description of reference numerals:

[0033] 1. Connecting rod; 2. Clamping seat; 21. Connecting plate; 22. U-shaped plate; 221. Strip hole; 23. First anti-skid leather pad; 24. Eccentric sleeve; 241. Arc-shaped protrusion; 25. Handle; 26. Limit bolt; 27. Fixed shaft; 3. Fixed seat; 31. C-shaped steel; 32. Horizontal plate; 33. Vertical plate; 34. Pad; 341. Second anti-skid leather pad; 342. Rigid pad; 343. Fine-tuning screw; 344. Fixing nut; 35. Right-angle reinforcing plate; 36. Fixing bolt; 4. Workpiece. DETAILED DESCRIPTION

[0034] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0035] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0037] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0038] like Figure 1 , Figure 2 As shown, a novel adjustable clamp comprises a connecting rod 1, and a fixing seat 3 and a clamping seat 2 fixedly mounted on the connecting rod 1, and a workpiece 4 is clamped by the fixing seat 3 and the clamping seat 2;

[0039] The clamping seat 2 includes connecting plates 21 fixedly connected to both sides of the connecting rod 1, a fixed shaft 27 arranged between the two connecting plates 21, and an eccentric sleeve 24 sleeved on the outside of the fixed shaft 27. One side of the eccentric sleeve 24 bulges outward to form an arc-shaped protrusion 241. A handle 25 is also fixed on the eccentric sleeve 24, and the handle 25 is used by the user to rotate the eccentric sleeve 24.

[0040] like Figure 3 As shown, the eccentric sleeve 24 can rotate around the fixed axis 27. When the workpiece 4 is clamped, the position of the arc-shaped protrusion 241 can be adjusted by rotating the handle 25. The initial state is as shown in FIG. Figure 1 As shown, at this time, the handle 25 is perpendicular to the connecting rod 1, and the arc-shaped protrusion 241 faces downward. When the workpiece 4 is clamped, the arc-shaped protrusion 241 gradually approaches the workpiece 4 by rotating the handle 25. Figure 2 As shown, the distance between the arc-shaped protrusion 241 and the fixing seat 3 is the smallest, and the handle 25 is parallel to the connecting rod 1 , and the workpiece 4 is completely clamped.

[0041] In this embodiment, the adjustable clamp has a fixed seat 3 and a rotatably arranged eccentric sleeve 24. After the workpiece 4 is placed between the fixed seat 3 and the clamping seat 2, the handle 25 is slightly turned (such as Figure 1 , Figure 2 As shown, the workpiece 4 can be clamped and fixed by the arc-shaped protrusion 241 on the eccentric sleeve 24 by only rotating the handle 25 by 90 degrees. This has not only a simple structure but also convenient operation, and can effectively improve the clamping efficiency of the workpiece 4.

[0042] In one embodiment, if Figure 1 , Figure 2 , Figure 4 As shown, the clamping seat 2 is further provided with a U-shaped plate 22; the U-shaped plate 22 includes side plates on both sides, and a top tightening plate provided between the side plates on both sides;

[0043] Two side plates are arranged outside the connecting plate 21, and strip holes 221 are arranged on the side plates. Limit bolts 26 are arranged in the strip holes 221. The outer diameter of the limit bolts 26 is smaller than the inner diameter of the strip holes 221, and the limit bolts 26 are fixedly connected to the fixed shaft 27. It should be noted that the limit bolts 26 are not fixedly connected to the side plates. The limit bolts 26 are arranged in the strip holes 221, and the side plates can be moved through the strip holes 221.

[0044] Optionally, in this embodiment, a first anti-skid leather pad 23 is further provided on one side of the top tightening plate adjacent to the fixing seat 3. The connection between the first anti-skid leather pad 23 and the top tightening plate may be adhesively bonded or bolted.

[0045] The clamping seat 2 is provided with a U-shaped plate 22. Through the structural design of the U-shaped plate 22, when clamping the workpiece 4, the eccentric sleeve 24 does not need to be in direct contact with the workpiece 4, but the first anti-skid leather pad 23 on the U-shaped plate 22 contacts the workpiece 4, and the arc-shaped protrusion 241 and the workpiece 4 are transformed from line contact to surface contact (if there is no U-shaped plate 22, when clamping the workpiece 4, the eccentric sleeve 24 needs to be in direct contact with the workpiece 4. When clamping, the arc-shaped protrusion 241 and the workpiece 4 are in line contact. After the U-shaped plate 22 is added, the first anti-skid leather pad 23 directly contacts the workpiece 4, which is a surface contact at this time). Not only the contact area between the clamping seat 2 and the workpiece 4 is increased, but also the anti-skid performance of the clamping seat 2 is increased. In addition, the first anti-skid leather pad 23 has a certain elasticity, and the contact with the workpiece 4 is a soft contact, which increases the smoothness of the eccentric sleeve 24 when rotating. If there is no first anti-skid leather pad 23, a large force is required to rotate the eccentric sleeve 24 into place, and the workpiece 4 may also be deformed.

[0046] In this embodiment, the purpose of the strip hole 221 is to achieve the movability of the side plate and then the movability of the clamping plate. When clamping the workpiece 4, when the handle 25 is rotated, the arc-shaped protrusion 241 will push the clamping plate and move toward the workpiece 4 until the workpiece 4 is clamped.

[0047] In one embodiment, the fixing seat 3 includes a C-shaped steel 31, and the C-shaped steel 31 is fixed to the outside of the connecting rod 1 by fixing bolts 36;

[0048] An L-shaped plate is welded to the outer side of the C-shaped steel 31; the L-shaped plate includes a horizontal plate 32 and a vertical plate 33, the horizontal plate 32 is welded and fixed to the C-shaped steel 31, and the vertical plate 33 is arranged on one side of the horizontal plate 32 adjacent to the clamping seat 2;

[0049] A backing plate 34 is provided on one side of the vertical plate 33 adjacent to the clamping seat 2 .

[0050] Optionally, in this embodiment, the pad 34 includes a rigid pad 342 and a second anti-slip leather pad 341; the rigid pad 342 is fixedly connected to the second anti-slip leather pad 341, and the connection between the second anti-slip leather pad 341 and the rigid pad 342 can be adhesive or bolted.

[0051] A fine-tuning screw 343 is provided at a section of the rigid pad 342 adjacent to the vertical plate 33, a through hole corresponding to the fine-tuning screw 343 is provided on the vertical plate 33, two fixing nuts 344 are provided on the fine-tuning screw 343, and the two fixing nuts 344 are respectively arranged on both sides of the vertical plate 33, and the distance between the pad 34 and the clamping seat 2 is adjusted by the fine-tuning screw 343.

[0052] Optionally, in order to increase the stability of the pad 34 in this embodiment, the number of the fine-tuning screws 343 is two.

[0053] Optionally, in order to increase the stability of the connection between the horizontal plate 32 and the vertical plate 33 in this embodiment, a right-angle reinforcing plate 35 is further provided between the horizontal plate 32 and the vertical plate 33 , and the right-angle reinforcing plate 35 is fixedly connected to the vertical plate 33 and the horizontal plate 32 .

[0054] In this embodiment, a pad 34 is provided on the fixed seat 3, and the pad 34 has a second anti-slip leather pad 341 and a rigid pad 342. The rigid pad 342 is connected to the vertical plate 33 on the fixed seat 3 through a fine-tuning screw 343. The micro-distance between the pad 34 and the clamping seat 2 can be fine-tuned by two fixing nuts 344 on the fine-tuning screw 343, thereby adjusting the clamping degree of the workpiece 4.

[0055] In one embodiment, the connecting rod 1 is made of square steel; the connecting rod 1 is provided with a plurality of position adjustment holes corresponding to the fixing bolts 36 , and the position of the fixing seat 3 is adjusted through the position adjustment holes.

[0056] In this embodiment, a position adjustment hole is provided on the connecting rod 1 of the novel adjustable clamp. The position adjustment hole can greatly adjust the distance between the fixing seat 3 and the clamping seat 2 compared with the fine-tuning screw 343 to accommodate workpieces 4 of different sizes.

[0057] Working principle:

[0058] 1. According to the size of the workpiece, first determine the position of the fixing seat on the connecting rod.

[0059] 2. By adjusting the fine-tuning screw, the micro-distance between the pad and the clamping seat can be adjusted to adapt to workpieces of different sizes and adjust the clamping degree.

[0060] 3. Place the workpiece between the fixed seat and the clamping seat.

[0061] 4. Turn the handle to clamp the workpiece.

[0062] To release the workpiece, simply lift the handle upwards.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.

[0064] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A new type of adjustable clamp, characterized by: It comprises a connecting rod, and a fixing seat and a clamping seat fixedly mounted on the connecting rod, and the workpiece is clamped by the fixing seat and the clamping seat; The clamping seat includes connecting plates fixedly connected to both sides of the connecting rod and a fixed shaft arranged between the two connecting plates, and an eccentric sleeve sleeved on the outside of the fixed shaft. One side of the eccentric sleeve bulges outward to form an arc-shaped protrusion. A handle is also fixed on the eccentric sleeve, and the handle is used by the user to rotate the eccentric sleeve.

2. The novel adjustable clamp according to claim 1 is characterized in that: The clamping seat is also provided with a U-shaped plate; The U-shaped plate includes side plates on both sides and a tightening plate arranged between the side plates on both sides; Two side plates are arranged on the outside of the connecting plate. The side plates are provided with strip holes. Limiting bolts are arranged in the strip holes. The outer diameter of the limiting bolts is smaller than the inner diameter of the strip holes. The limiting bolts are fixedly connected to the fixed shaft.

3. The novel adjustable clamp according to claim 2 is characterized in that: A first anti-slip leather pad is also provided on one side of the tightening plate adjacent to the fixing seat.

4. The novel adjustable clamp according to claim 1 is characterized in that: The fixing seat comprises a C-shaped steel, and the C-shaped steel is fixed to the outside of the connecting rod by fixing bolts; An L-shaped plate is welded on the outer side of the C-shaped steel; the L-shaped plate includes a horizontal plate and a vertical plate, the horizontal plate is welded and fixed to the C-shaped steel, and the vertical plate is arranged on one side of the horizontal plate adjacent to the clamping seat; A pad is provided on one side of the vertical plate adjacent to the clamping seat.

5. The novel adjustable clamp according to claim 4 is characterized in that: The pad includes a rigid pad and a second anti-skid leather pad; the rigid pad is fixedly connected to the second anti-skid leather pad; A fine-tuning screw is provided at a section of the rigid pad adjacent to the vertical plate, a through hole corresponding to the fine-tuning screw is provided on the vertical plate, two fixing nuts are provided on the fine-tuning screw, and the two fixing nuts are respectively arranged on both sides of the vertical plate. The distance between the pad and the clamping seat is adjusted by the fine-tuning screw.

6. The novel adjustable clamp according to claim 5 is characterized in that: The number of the fine-tuning screws is two.

7. The novel adjustable clamp according to claim 4 is characterized in that: A right-angle reinforcing plate is also provided between the horizontal plate and the vertical plate, and the right-angle reinforcing plate is fixedly connected to the vertical plate and the horizontal plate.

8. The novel adjustable clamp according to claim 4 is characterized in that: The connecting rod is square steel; The connecting rod is provided with a plurality of position adjustment holes corresponding to the fixing bolts, and the position of the fixing seat is adjusted through the position adjustment holes.

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