A punching and clamping tool

Abstract

The utility model discloses a kind of punching clamping tool, it is related to the technical field of punching clamping tool, punching clamping tool includes base and fixing part, base is provided with support surface and blanking through slot, punching clamping tool further includes two groups of anti-rotation boss and positioning boss, the surrounding area of anti-rotation boss and positioning boss forms positioning space, blanking through slot is located in positioning space;Fixing part includes oppositely arranged upper locating surface, lower locating surface and locating shaft hole, the length of fixing part is adapted to the width of two groups of anti-rotation boss, blanking through slot is below locating shaft hole. By wrapping U-shaped workpiece on fixing part and fixing U-shaped workpiece through positioning boss, then positioning fixing part through anti-rotation boss, finally using tool to process U-shaped workpiece through locating shaft hole, U-shaped workpiece does not occur in processing Wandering and rotation, and the through hole of the upper and lower two end surfaces processed during processing is coaxially arranged, not only processing is convenient, and the qualified rate of product after processing is higher.

Description

Technical Field

[0001] This utility model relates to the technical field of grinding devices, and in particular to a punching clamping fixture. Background Technology

[0002] For U-shaped products or workpieces with a U-shaped structure, there is a need to drill multiple coaxial holes on both side walls of the U-shaped portion. In related technologies, the drilling process for the U-shaped portion is as follows: after fixing the product, a tool is used to drill holes on one side, and after drilling holes on one side is completed, holes are drilled on the other side.

[0003] However, during the processing of the U-shaped part, not only will the product deform in the direction of closing, but the workpiece will also rotate under the action of drilling force, resulting in low coaxiality of the through hole of the workpiece. In addition, there are technical problems such as inconvenient clamping and fixing, and low qualified rate of processed products. Utility Model Content

[0004] The purpose of this invention is to provide a punching clamping fixture, which solves the problems of inconvenient processing and a very low product qualification rate.

[0005] To achieve the above objectives, the present invention adopts the following solution: a punching clamping fixture for punching holes in U-shaped workpieces, characterized in that: the punching clamping fixture includes a base and a fixing member adapted to the base; the base is provided with a supporting surface and a through-feeding groove; the punching clamping fixture further includes a positioning mechanism fixed to the supporting surface; the positioning mechanism includes two sets of anti-rotation bosses arranged opposite each other and a positioning boss located between the two sets of anti-rotation bosses; the area surrounding the anti-rotation bosses and the positioning bosses forms a positioning space; the through-feeding groove is located within the positioning space. The fixing component includes an upper positioning surface, a lower positioning surface, and multiple positioning shaft holes arranged opposite to each other. The positioning shaft holes penetrate vertically through the upper and lower positioning surfaces. The length of the fixing component is adapted to the width of the two sets of anti-rotation bosses. The material discharge channel is located below the positioning shaft holes. The upper and lower positioning surfaces are used to position and support the two side walls of the U-shaped workpiece, and the positioning bosses position the end face of the U-shaped workpiece.

[0006] In this solution, the U-shaped workpiece is wrapped around the fixing part and fixed by the positioning boss. Then, the fixing part is positioned by the anti-rotation boss. Finally, the U-shaped workpiece is machined through the positioning shaft hole by a tool, so that the U-shaped workpiece will not move or rotate during processing. Moreover, the through holes machined on the upper and lower end faces are coaxially set, which not only makes processing convenient but also results in a higher product qualification rate.

[0007] Preferably, the fastener includes a chip-breaking groove formed by a recess in the upper positioning surface, and the positioning shaft hole is located within the chip-breaking groove.

[0008] In this solution, chip breaking grooves are set up to store residual chips during processing and to break chips on the back of the workpiece, thus preventing chips from scratching the surface of the next layer of workpiece.

[0009] Preferably, the fastener is provided with limit blocks at both ends, the width of the limit blocks is greater than the width of the two sets of anti-rotation bosses, the fastener is assembled into the positioning space, and the limit blocks abut against the anti-rotation bosses.

[0010] In this solution, by setting a limit block in conjunction with an anti-rotation boss, the fixed parts can be better prevented from rotating during processing.

[0011] Preferably, a handle is provided on one side of the fixing member, and the handle protrudes in a cantilever shape.

[0012] In this design, the addition of handles allows for better handling of fixed components.

[0013] As a further preferred embodiment, the handle and the fixing member are detachably connected.

[0014] Preferably, the axis of the positioning shaft hole is located within the longitudinal center symmetry plane of the material discharge channel.

[0015] Preferably, the positioning shaft holes are provided in six sizes and are evenly distributed along the length of the material discharge channel.

[0016] Preferably, the anti-rotation boss is cylindrical, and the cylindrical surfaces of the two sets of anti-rotation bosses are arranged in parallel.

[0017] As a further preferred embodiment, the radius of the cylinder is greater than or equal to the thickness of the fastener.

[0018] Preferably, the base includes a base and a height-adjusting base fixed to the base, the height-adjusting base adjusting the processing height of the base.

[0019] In this solution, the drilling height and drilling position of the workpiece can be adjusted by setting an adjustable base. Attached Figure Description

[0020] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the present invention.

[0021] Figure 1 This is a schematic diagram of the punching clamping fixture of this utility model; Figure 2This is a schematic diagram of the base and positioning mechanism of the punching clamping fixture of this utility model; Figure 3 This is a first exploded structural diagram of the fixing component and the U-shaped workpiece of the punching clamping fixture of this utility model; Figure 4 This is a second exploded structural diagram of the fixing component and the U-shaped workpiece of the punching clamping fixture of this utility model.

[0022] In the diagram: 1. Base; 11. Material feeding groove; 12. Support surface; 2. Fixing component; 21. Chip breaking groove; 22. Positioning shaft hole; 23. Limiting block; 24. Upper positioning surface; 25. Lower positioning surface; 3. Positioning mechanism; 31. Anti-rotation boss; 32. Positioning boss; 33. Positioning space; 4. Handle component; 5. Height adjustment base; 6. U-shaped workpiece. Detailed Implementation

[0023] In the description of this utility model, unless otherwise explicitly specified and limited, the term "connection" or similar designation indicating the connection relationship between components should be interpreted broadly. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0024] Referring to Figures 1 to 4, a punching clamping fixture is used for punching holes in a U-shaped workpiece 6. The punching clamping fixture includes a base 1 and a fixing member 2 adapted to the base 1. The U-shaped walls on both sides of the U-shaped workpiece 6 are respectively tightly attached to the upper and lower sides of the fixing member 2. The width of the fixing member 2 is basically the same as the spacing between the U-shaped walls.

[0025] The base 1 is provided with a support surface 12 and a through discharge channel 11. The discharge channel 11 is a long groove structure that can discharge the debris generated during drilling from the drilling area. Preferably, the area of ​​the discharge channel 11 is larger than the area of ​​the drilling area.

[0026] The punching clamping fixture also includes a positioning mechanism 3 fixed to the support surface 12. The positioning mechanism 3 includes two sets of anti-rotation bosses 31 arranged opposite to each other and a positioning boss 32 located between the two sets of anti-rotation bosses 31. The area surrounding the anti-rotation bosses 31 and the positioning bosses 32 forms a positioning space 33, and the material discharge channel 11 is located in the positioning space 33.

[0027] The fixing member 2 includes an upper positioning surface 24, a lower positioning surface 25 and a plurality of positioning shaft holes 22 arranged opposite to each other. The positioning shaft holes 22 penetrate vertically through the upper positioning surface 24 and the lower positioning surface 25. The length of the fixing member 2 is adapted to the width of the two sets of anti-rotation bosses 31. The material discharge groove 11 is located below the positioning shaft holes 22. The upper positioning surface 24 and the lower positioning surface 25 are used to position and support the two side walls of the U-shaped workpiece 6, and the positioning bosses 32 position the end face of the U-shaped workpiece 6.

[0028] Furthermore, as a preferred embodiment, the fastener 2 includes a chip-breaking groove 21 formed by recessing from the upper positioning surface 24, and the positioning shaft hole 22 is located in the chip-breaking groove 21.

[0029] Furthermore, as a preferred embodiment, the two ends of the fastener 2 are provided with limiting blocks 23. The width of the limiting blocks 23 is greater than the width of the two sets of anti-rotation bosses 31. The fastener 2 is assembled into the positioning space 33, and the limiting blocks 23 abut against the anti-rotation bosses 31.

[0030] Furthermore, as a preferred embodiment, a handle 4 is provided on one side of the fixing member 2, and the handle 4 protrudes in a cantilever shape. The handle 4 and the fixing member 2 are detachably connected.

[0031] Furthermore, as a preferred embodiment, the axis of the positioning shaft hole 22 is located within the longitudinal central symmetry plane of the discharge channel 11. Six positioning shaft holes 22 are provided and evenly distributed along the length direction of the discharge channel 11.

[0032] Furthermore, as a preferred embodiment, the anti-rotation boss 31 is cylindrical, and the cylindrical surfaces of the two sets of anti-rotation bosses 31 are arranged in parallel. The radius of the cylinder is greater than or equal to the thickness of the fastener 2.

[0033] Furthermore, as a preferred embodiment, the base 1 includes a base 1 and a height adjustment base 5 fixed to the base 1, the height adjustment base 5 adjusting the processing height of the base 1.

[0034] Referring to Figures 1 to 4, the following further explanation follows: A base 1 is provided at the upper end of the height-adjusting base 5. The height-adjusting base 5 is used to adjust the processing height of the base 1. The height-adjusting base 5 can be an I-shaped base, a shim, or a frame-shaped base. The base 1 is located above the height-adjusting base 5 and is used to fix the workpiece. The height adjustment of the height-adjusting base 5 includes replacing bases of different heights or using adjustable height methods with studs. Refer to existing base adjustment methods; further details will not be elaborated here.

[0035] The upper surface of the base 1 is provided with a support surface 12, and the center of the base 1 is provided with a material discharge groove 11. The positioning mechanism 3 protrudes from the support surface 12 and can position the workpiece and the fixing part 2.

[0036] The positioning mechanism 3 consists of two anti-rotation bosses 31 and two positioning bosses 32. Specifically, two positioning bosses 32 are provided on the front side of the upper end face of the base 1, and two anti-rotation bosses 31 are provided on the left and right sides of the upper end face of the base 1. The two positioning bosses 32 are located between the two anti-rotation bosses 31, and the two anti-rotation bosses 31 and the two positioning bosses 32 surround each other to form a positioning space 33. The positioning space 33 is used to position the fixed part 2 and the U-shaped workpiece 6 after connection. Preferably, the anti-rotation bosses 31 are cylindrical, and the cylinders have no sharp edges, resulting in smooth insertion and removal. The cylindrical surfaces of the two anti-rotation bosses 31 are arranged in parallel, and the radius of the cylinder is greater than or equal to the thickness of the fixed part 2.

[0037] Specifically, in this embodiment, the fixing member 2 is a rectangular plate. The upper and lower end faces of the fixing member 2 are the upper positioning surface 24 and the lower positioning surface 25, respectively. The fixing member 2 is recessed from the upper positioning surface 24 to form a chip breaking groove 21. The bottom wall of the chip breaking groove 21 is provided with a positioning shaft hole 22. The axis of the positioning shaft hole 22 is located in the longitudinal center symmetry plane of the material discharge channel 11 and is connected to the material discharge channel 11. There are six positioning shaft holes 22, which are evenly arranged along the length direction of the material discharge channel 11.

[0038] The positioning shaft hole 22 vertically penetrates the upper positioning surface 24 and the lower positioning surface 25. The length of the fixing member 2 is adapted to the width of the two sets of anti-rotation bosses 31. The U-shaped workpiece 6 is sleeved on the fixing member 2. The upper positioning surface 24 and the lower positioning surface 25 are used to position and support the two side walls of the U-shaped workpiece 6. The positioning bosses 32 position the end face of the U-shaped workpiece 6. Limiting blocks 23 are provided on the left and right sides of the fixing member 2. The width of the limiting blocks 23 is greater than the width of the two sets of anti-rotation bosses 31. After the U-shaped workpiece 6 is sleeved on the fixing member 2, the fixing member 2 is assembled into the positioning space 33, and the limiting blocks 23 abut against the anti-rotation bosses 31.

[0039] A handle 4 is provided on one side of the fixing member 2. The handle 4 protrudes in a cantilever shape and is detachably connected to the fixing member 2. The detachment method can be a threaded connection. The handle 4 can be a screw or a U-shaped handle for easy gripping.

[0040] Specifically, in this embodiment, the U-shaped workpiece 6 is wrapped around the fixing member 2 and fixed by the positioning boss 32. Then, the fixing member 2 is positioned by the anti-rotation boss 31. Finally, the U-shaped workpiece 6 is processed by a tool to pass through the positioning shaft hole 22, so that the U-shaped workpiece 6 will not move or rotate during processing. Moreover, the through holes processed on the upper and lower end faces are coaxially set, which not only makes processing convenient but also results in a higher product qualification rate.

[0041] Specifically, in this embodiment, the chip breaker groove 21 allows for the storage of chips generated during machining. The limiting block 23, in conjunction with the anti-rotation boss 31, better prevents the fixing part 2 from rotating during machining. The handle 4 facilitates the placement and removal of the fixing part 2. The height-adjustable base 5 allows for adjustment of the drilling height.

[0042] It should be understood that this invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this invention is limited only by the appended claims.

Claims

1. A punching clamping fixture for punching holes in U-shaped workpieces, characterized in that: The punching clamping fixture includes a base and a fixing component adapted to the base. The base is provided with a support surface and a through-hole blanking groove. The punching clamping fixture also includes a positioning mechanism fixed to the support surface. The positioning mechanism includes two sets of anti-rotation bosses arranged opposite each other and a positioning boss located between the two sets of anti-rotation bosses. The area surrounding the anti-rotation bosses and the positioning bosses forms a positioning space, and the blanking groove is located within the positioning space. The fixing component includes an upper positioning surface, a lower positioning surface, and multiple positioning shaft holes arranged opposite to each other. The positioning shaft holes penetrate vertically through the upper and lower positioning surfaces. The length of the fixing component is adapted to the width of the two sets of anti-rotation bosses. The material discharge channel is located below the positioning shaft holes. The upper and lower positioning surfaces are used to position and support the two side walls of the U-shaped workpiece, and the positioning bosses position the end face of the U-shaped workpiece.

2. The punching clamping fixture according to claim 1, characterized in that, The fastener includes a chip-breaking groove formed by a recess in the upper positioning surface, and the positioning shaft hole is located within the chip-breaking groove.

3. The punching clamping fixture according to claim 1, characterized in that, The fastener has limit blocks at both ends, and the width of the limit blocks is greater than the width of the two sets of anti-rotation bosses. The fastener is assembled into the positioning space, and the limit blocks abut against the anti-rotation bosses.

4. The punching clamping fixture according to claim 1, characterized in that, A handle is provided on one side of the fixing member, and the handle protrudes in a cantilever shape.

5. A punching clamping fixture according to claim 4, characterized in that, The handle and the fixing member are detachably connected.

6. The punching clamping fixture according to claim 1, characterized in that, Therefore, the axis of the positioning shaft hole is located within the longitudinal center symmetry plane of the material discharge channel.

7. The punching clamping fixture according to claim 1, characterized in that, The positioning shaft holes are provided in six places and are evenly distributed along the length of the material discharge channel.

8. A punching clamping fixture according to claim 1, characterized in that, The anti-rotation boss is cylindrical, and the cylindrical surfaces of the two sets of anti-rotation bosses are arranged in parallel.

9. A punching clamping fixture according to claim 8, characterized in that, The radius of the cylinder is greater than or equal to the thickness of the fastener.

10. A punching clamping fixture according to claim 1, characterized in that, The base includes a base and a height-adjustable base fixed to the base, the height-adjustable base adjusting the processing height of the base.

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