Novel clamp for machining

Abstract

The utility model discloses a novel clamp for machining, which comprises a base, a vertical fixing mechanism is arranged above the base, the vertical fixing mechanism comprises a lower pressing plate, at least one connecting block is arranged on the bottom surface of the lower pressing plate, and the bottom surface of the connecting block is detachably connected with a pressing head through a connecting piece; the pressing plate of the vertical fixing mechanism drives the connecting block and the pressing head to press downwards to fix materials, the pressing head is detachably connected with the connecting block, the pressing head is convenient to replace, the appropriate pressing head can be selected for fixing according to the shape of the materials needing to be fixed, and the better fixing effect is achieved.

Description

Technical Field

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

[0002] Machining refers to the whole process of changing the external dimensions or performance of a workpiece through a mechanical device and making raw materials or blanks into products according to the different shapes of the required parts. During machining, fixtures are required to clamp and fix parts, materials or semi-finished blanks.

[0003] The Chinese utility model patent with publication number CN212372003U discloses a new type of mechanical processing fixture, including a base, a movable plate movably connected to the top side of the base, side baffles symmetrically provided on the two side edges of the top of the movable plate, a first threaded rod is passed through the side baffles, the opposite ends of the first threaded rod are fixedly connected to the side clamping plates through a rotating shaft, the outer ends of the first threaded rods are fixedly connected to the first adjusting buttons, the top side of the movable plate is symmetrically dug with first grooves, the inner walls of the first grooves are fixedly connected with blocks, the outer sides of the blocks are fixedly connected to guide rods, and the guide rods are sleeved with sliding rings.

[0004] The side clamp of this new type of machining fixture is fixedly connected to the rotating shaft and is difficult to replace. Utility Model Content

[0005] The purpose of the utility model is to provide a novel mechanical processing fixture to solve at least one of the above technical problems.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A novel mechanical processing fixture comprises a base, a vertical fixing mechanism is arranged above the base, the vertical fixing mechanism comprises a lower pressing plate, at least one connecting block is arranged on the bottom surface of the lower pressing plate, and a pressing head is detachably connected to the bottom surface of the connecting block through a connecting piece.

[0008] The utility model fixes the material by driving the connecting block and the pressing head downwards through the lower pressing plate of the vertical fixing mechanism, and the pressing head is detachably connected to the connecting block to facilitate replacement of the pressing head. A suitable pressing head can be selected for fixing according to the shape of the material to be fixed, so as to achieve a better fixing effect.

[0009] The lockhole engages with the first threaded portion 240 through 250 of the second end of the locking nut and the lockhole engages with the first threaded portion 240 through 250 of the second end of the locking nut.

[0010] Furthermore, the bottom surface of the connecting block is concave to form a positioning groove, and the top surface of the pressure head is convex to form a positioning part that cooperates with the positioning groove. The shape of the positioning part matches the shape of the positioning groove, which facilitates accurate installation of the pressure head on the connecting block.

[0011] Furthermore, the upper portion of the connecting portion is in a truncated cone shape, which facilitates the connecting portion to be inserted into the connecting hole.

[0012] Furthermore, the outer diameter of the non-threaded section is greater than the outer diameter of the threaded section, which can prevent the threaded section from hindering the connecting rod from being inserted into the connecting block and the connecting part.

[0013] Specifically, the vertical fixing mechanism also includes a guide column, a first threaded rod and a first nut threadedly connected to the first threaded rod, the guide columns are fixed at both ends of the top surface of the base in the vertical direction, the two ends of the lower pressure plate are slidably connected to the two guide columns, the first threaded rod is fixed at both ends of the top surface of the base in the vertical direction, and air avoidance holes are opened at both ends of the lower pressure plate. The first threaded rod passes through the air avoidance holes, and the first nut abuts against the top surface of the lower pressure plate. The guide column is used to guide the lower pressure plate in the vertical direction, and the first threaded rod is used in conjunction with the first nut to limit the rise of the lower pressure plate, so that the lower pressure plate can cooperate with the pressure head to fix the material.

[0014] Furthermore, a second stopper is provided at the top end of the guide column to prevent the lower pressing plate from separating from the guide column.

[0015] Furthermore, a compression spring is sleeved on the guide column, the bottom end of the compression spring abuts against the top surface of the base, and the top end abuts against the bottom surface of the lower pressure plate, which can push up the lower pressure plate to facilitate the placement of materials and their fixation.

[0016] Furthermore, a handle is fixed on the first nut to facilitate twisting the first nut and quickly fix the material.

[0017] Furthermore, the top surface of the lower pressure plate is provided with a through groove along its length direction, and a second threaded rod is passed through the through groove in the vertical direction, the bottom end of the second threaded rod is fixed to the connecting block, and the second threaded rod is threadedly connected with a second nut, and the second nut abuts against the top surface of the lower pressure plate, and the bottom surface of the lower pressure plate is provided with a guide groove consistent with the length direction of the through groove, and the top surface of the connecting block is provided with a guide strip that cooperates with the guide groove, and the connecting block is fixed to the bottom surface of the lower pressure plate by the second threaded rod being provided and cooperating with the second nut, and the position of the connecting block on the bottom surface of the lower pressure plate can be adjusted by the provided through groove, and the movement of the connecting block can be guided by the cooperation of the provided guide groove and the guide strip.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] The utility model fixes the material by driving the connecting block and the pressing head downwards through the lower pressing plate of the vertical fixing mechanism, and the pressing head is detachably connected to the connecting block to facilitate replacement of the pressing head. A suitable pressing head can be selected for fixing according to the shape of the material to be fixed, so as to achieve a better fixing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of a novel mechanical processing fixture structure in this embodiment;

[0021] Figure 2 : is a position relationship diagram of the through slot and the second threaded rod in this embodiment;

[0022] Figure 3 Schematic diagram of the connecting member structure in this embodiment;

[0023] In the figure: 1. base; 2. vertical fixing mechanism; 21. lower pressure plate; 22. guide column; 23. first threaded rod; 24. first nut; 25. air avoidance hole; 26. second stopper; 27. compression spring; 28. handle; 3. connecting block; 31. connecting hole; 4. connecting piece; 41. connecting rod; 42. first stopper; 43. nut; 44. non-threaded section; 45. threaded section; 5. pressure head; 51. connecting part; 52. positioning part; 53. positioning groove; 6. through groove; 7. second threaded rod; 8. second nut. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the utility model to clearly and completely describe the technical solution 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.

[0025] like Figure 1 and Figure 2 As shown, this embodiment provides a new type of mechanical processing fixture, including a base 1, a vertical fixing mechanism 2 is provided above the base 1, the vertical fixing mechanism 2 includes a lower pressure plate 21, and also includes a guide column 22, a first threaded rod 23 and a first nut 24 threadedly connected to the first threaded rod 23, both ends of the top surface of the base 1 are fixed with the guide columns 22 in the vertical direction, the two ends of the lower pressure plate 21 are slidably connected with the two guide columns 22, both ends of the top surface of the base 1 are fixed with the first threaded rod 23 in the vertical direction, and the two ends of the lower pressure plate 21 are provided with avoidance holes 25, and the first threaded rod 23 passes through the avoidance holes 2 5 passes through the lower pressing plate 21, and the first nut 24 abuts against the top surface of the lower pressing plate 21; the bottom surface of the lower pressing plate 21 is provided with two but not limited to two connecting blocks 3, specifically, the top surface of the lower pressing plate 21 is provided with a through slot 6 along its length direction, and a second threaded rod 7 is passed through the through slot 6 along the vertical direction, and the bottom end of the second threaded rod 7 is fixed to the connecting block 3, and a second nut 8 is threadedly connected to the second threaded rod 7, and the second nut 8 abuts against the top surface of the lower pressing plate 21, and the bottom surface of the lower pressing plate 21 is provided with a guide groove consistent with the length direction of the through slot 6, and the top surface of the connecting block 3 is provided with a guide strip matched with the guide groove; Figure 3 As shown, the bottom surface of the connecting block 3 is detachably connected to a pressure head 5 through a connecting member 4, and the connecting member 4 includes a connecting rod 41, a first stopper 42 fixed to one end of the connecting rod 41, and a nut 43 threadedly connected to the other end of the connecting rod 41, the connecting rod 41 includes a non-threaded section 44 and a threaded section 45 located at one end of the connecting rod 41, and the nut 43 is threadedly connected to the threaded section 45. The bottom surface of the connecting block 3 is provided with a connecting hole 31, and the top surface of the pressure head 5 protrudes to form a connecting portion 51 that cooperates with the connecting hole 31, and the non-threaded section 44 passes through the connecting block 3 and the connecting part 51, the first stop block 42 and the nut 43 are both in contact with the side of the connecting block 3, and the connecting block 3 and the connecting part 51 are fixed by the arranged connecting rod 41, the first stop block 42 and the nut 43, thereby achieving the fixing of the connecting block 3 and the pressing head 5, and the arranged non-threaded section 44 facilitates the connecting rod 41 to pass through the connecting block 3 and the connecting part 51, and the arranged threaded section 45 achieves threaded connection with the nut 43, and can cooperate with the nut 43 to fix the connecting block 3 and the connecting part 51 together, and the nut 43 is easy to screw, making it easier to disassemble and install the pressing head 5.

[0026] The utility model fixes the material by driving the connecting block 3 and the pressing head 5 to press downward through the lower pressing plate 21 of the vertical fixing mechanism 2. The pressing head 5 is detachably connected to the connecting block 3 to facilitate replacement of the pressing head 5. A suitable pressing head 5 can be selected according to the shape of the material to be fixed to achieve a better fixing effect.

[0027] Furthermore, the bottom surface of the connecting block 3 is concave to form a positioning groove 53, and the top surface of the pressing head 5 is convex to form a positioning portion 52 that cooperates with the positioning groove 53. The shape of the positioning portion 52 matches the shape of the positioning groove 53, so as to facilitate accurate installation of the pressing head 5 on the connecting block 3.

[0028] Furthermore, the upper portion of the connecting portion 51 is in a truncated cone shape, so that the connecting portion 51 can be easily inserted into the connecting hole 31 .

[0029] Furthermore, the outer diameter of the non-threaded section 44 is greater than the outer diameter of the threaded section 45 , which can prevent the threaded section 45 from hindering the connecting rod 41 from being inserted into the connecting block 3 and the connecting portion 51 .

[0030] Furthermore, a second stopper 26 is provided at the top of the guide column 22 to prevent the lower pressing plate 21 from being separated from the guide column 22 .

[0031] Furthermore, a compression spring 27 is sleeved on the guide column 22, the bottom end of the compression spring 27 abuts against the top surface of the base 1, and the top end abuts against the bottom surface of the lower pressure plate 21, which can push up the lower pressure plate 21 to facilitate the placement of materials and their fixation.

[0032] Furthermore, a handle 28 is fixed on the first nut 24 to facilitate turning the first nut 24 to quickly fix the material.

[0033] Working principle: align the connecting part 51 with the connecting hole 31, insert it, and then adjust the position of the pressing head 5 so that the positioning part 52 enters the positioning groove 53, insert the connecting rod 41, and tighten the nut 43 to install the pressing head 5; hold the pressing head 5, loosen the second nut 8 to move the connecting block 3, adjust the position of the pressing head 5, and then tighten the second nut 8 to fix the connecting block 3 and the lower pressing plate 21; the compression spring 27 pushes the lower pressing plate 21 upward, and the height of the lower pressing plate 21 can be adjusted by screwing the first nut 24. After placing the material to be fixed, screwing the first nut 24 can drive the lower pressing plate 21 to descend and fix the material.

[0034] It should be noted that although the present invention is disclosed as above with specific embodiments, the above embodiments are not intended to limit the present invention. Ordinary technicians in this field can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope defined in the claims.

Claims

1. A new type of mechanical processing fixture, characterized in that: It comprises a base, a vertical fixing mechanism is arranged above the base, the vertical fixing mechanism comprises a lower pressing plate, at least one connecting block is arranged on the bottom surface of the lower pressing plate, and a pressing head is detachably connected to the bottom surface of the connecting block through a connecting piece.

2. A novel mechanical processing fixture as claimed in claim 1, characterized in that: The connecting member includes a connecting rod, a first stopper fixed to one end of the connecting rod, and a nut threadedly connected to the other end of the connecting rod, the connecting rod includes a non-threaded section and a threaded section located at one end of the connecting rod, the nut is threadedly connected to the threaded section, a connecting hole is provided on the bottom surface of the connecting block, the top surface of the pressure head protrudes to form a connecting portion that cooperates with the connecting hole, the non-threaded section passes through the connecting block and the connecting portion, and the first stopper and the nut are both in contact with the side of the connecting block.

3. A novel mechanical processing fixture as claimed in claim 2, characterized in that: The bottom surface of the connecting block is concave to form a positioning groove, and the top surface of the pressure head is convex to form a positioning portion that matches the positioning groove.

4. A novel mechanical processing fixture as claimed in claim 2, characterized in that: The upper part of the connecting part is in a truncated cone shape.

5. A novel mechanical processing fixture as claimed in claim 2, characterized in that: The outer diameter of the non-threaded section is greater than the outer diameter of the threaded section.

6. A novel mechanical processing fixture as claimed in claim 1, characterized in that: The vertical fixing mechanism also includes a guide column, a first threaded rod and a first nut threadedly connected to the first threaded rod. The guide columns are fixed at both ends of the top surface of the base in the vertical direction. The two ends of the lower pressure plate are slidably connected to the two guide columns. The first threaded rod is fixed at both ends of the top surface of the base in the vertical direction. Avoidance holes are opened at both ends of the lower pressure plate. The first threaded rod passes through the avoidance holes to penetrate the lower pressure plate, and the first nut abuts against the top surface of the lower pressure plate.

7. A novel mechanical processing fixture as claimed in claim 6, characterized in that: A second stopper is disposed at the top end of the guide column.

8. A novel mechanical processing fixture as claimed in claim 6, characterized in that: A compression spring is sleeved on the guide column, the bottom end of the compression spring abuts against the top surface of the base, and the top end abuts against the bottom surface of the lower pressure plate.

9. A novel mechanical processing fixture as claimed in claim 6, characterized in that: A handle is fixed on the first nut.

10. A novel mechanical processing fixture as claimed in claim 1, characterized in that: A through groove is formed on the top surface of the lower pressure plate along its length direction, a second threaded rod is passed through the through groove along the vertical direction, the bottom end of the second threaded rod is fixed to the connecting block, a second nut is threadedly connected to the second threaded rod, the second nut abuts against the top surface of the lower pressure plate, a guide groove consistent with the length direction of the through groove is formed on the bottom surface of the lower pressure plate, and a guide strip cooperating with the guide groove is provided on the top surface of the connecting block.

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