Adjustable multi-station tool clamp

Abstract

The utility model relates to an adjustable multi-station work fixture which comprises a base, a clamping block is detachably arranged on each of the two opposite sides of the top face of the base, a plurality of OK clamps are detachably arranged on the top face of the base, the OK clamps are sequentially and adjacently arranged side by side and located between the two clamping blocks, and clamping stations are formed by the OK clamps and the two clamping blocks. A plurality of clamping block positioning holes are formed in the bottom face of each clamping block in the arrangement direction of the multiple OK clamps side by side at intervals. Positioning pin sets are arranged at the positions, corresponding to the clamping block positioning holes, of the top face of the base, and each positioning pin set comprises a positioning pin capable of being matched with the clamping block positioning holes for clamping and positioning and a plurality of base positioning holes which are formed in parallel at intervals from inside to outside in the direction perpendicular to the arrangement direction of the OK clamps and are used for detachably installing the positioning pin. The tool is convenient to use, can be suitable for workpieces of different shapes and structures, improves the machining efficiency, widens the application range, and reduces the production cost.

Description

TECHNICAL FIELD

[0001] The utility model relates to tool fixture field especially adjustable multi-station tool fixture. BACKGROUND

[0002] In the machining process, the clamping tool is needed to fix and position the workpiece, and the tool not only plays a role in fixing the position of the workpiece, but also determines the positioning reference of the machining. Only when the workpiece and the tool are precisely positioned can the machining accuracy and quality be guaranteed.

[0003] The existing multi-station clamp has been widely used, which can greatly improve the production efficiency of machining. However, the existing multi-station clamp can usually only be customized one-to-one according to the size and shape of the workpiece, and the customized clamp can only be used for machining of a single workpiece, which has poor versatility. When machining various types of workpieces, the entire set of clamps needs to be frequently replaced, which not only increases the production cost, but also reduces the production efficiency. Moreover, the station position and clamping mode in the existing multi-station clamp are pre-set and cannot be adjusted without affecting the accuracy to completely match products of different sizes and shapes, which makes the range of application narrow and can only be used for standardized products. It is difficult to achieve machining of special-shaped parts (parts with irregular geometric shapes), which reduces the practicality and range of application of the clamp. SUMMARY

[0004] In view of the existing deficiencies, the utility model provides a kind of adjustable multi-station tool fixture.

[0005] The technical scheme adopted by the utility model to solve its technical problems is: a kind of adjustable multi-station tool fixture, including base, the base is detachably provided with one clamping block on the top surface of opposite sides, the base is detachably provided with a plurality of OK clamps between two clamping blocks and with two clamping blocks forming clamping station in turn adjacent and parallel, each The bottom surface of the clamping block is spaced and parallel along the arrangement direction of the plurality of OK clamps and is provided with a plurality of clamping block positioning holes;The position corresponding to the clamping block positioning hole on the top surface of the base is provided with positioning pin group, each The positioning pin group includes a positioning pin that can be matched with the clamping block positioning hole and positioned, a plurality of base positioning holes that can be detachably installed positioning pin are spaced and parallel from inside to outside in the direction perpendicular to the arrangement direction of the plurality of OK clamps.

[0006] As preferred, the top surface of each of the clamping blocks is provided with a plurality of mounting through holes arranged side by side at intervals along the arrangement direction of the plurality of OK clamps, the base is provided with a mounting hole set at a position corresponding to the mounting through hole, each of the mounting hole sets comprises a plurality of base threaded holes arranged side by side at intervals from inside to outside in a direction perpendicular to the arrangement direction of the plurality of OK clamps; the clamping blocks are detachably connected to the base through first bolts passing through the mounting through holes and being threadedly connected in the base threaded holes.

[0007] As preferred, the plurality of base positioning holes in each of the positioning pin sets are arranged at the same intervals.

[0008] As preferred, the base is provided with a protrusion at a position between the two clamping blocks on the top surface, and the OK clamp is arranged on the top surface of the protrusion.

[0009] As preferred, each of the OK clamps comprises a first push block with an inverted trapezoidal cross section, and two inclined blocks arranged side by side and slidingly arranged on opposite sides of the first push block, the top surface of the first push block is provided with a first threaded hole, the top surface of the base is provided with a top surface sliding groove matching the horizontal sliding of the two inclined blocks, and the top surface of the base is further provided with a top surface threaded hole coaxial with the first threaded hole, the first push block is detachably connected to the base through a second bolt passing through the first threaded hole and being threadedly connected in the top surface threaded hole; each of the two inclined blocks in each of the OK clamps is detachably connected with a second push block on a side away from each other, and a clamping station is formed between the surface of the second push block and the surface of the clamping block opposite to the second push block.

[0010] As preferred, each of the inclined blocks is provided with a first sliding groove on the surface opposite to the first push block, and the first push block extends with a sliding arm matching the sliding of the first sliding groove.

[0011] As preferred, the first sliding groove has an inverted T-shaped structure in cross section.

[0012] As preferred, a retractable spring is arranged between the first sliding groove and the sliding arm.

[0013] As preferred, the base is further provided with a handle.

[0014] As preferred, the base is provided with a baffle on the top surface corresponding to the two ends of the clamping block.

[0015] The utility model discloses an advantageous effect lies in: the utility model discloses through the dismounting replacement of clamping block can be applicable to different product clamping, and the detachable connection of clamping block and base has made it convenient for the dismounting of it, and the use is more convenient, the adjacent parallel setting of multiple OK clamps in turn has ensured the effective clamping of product, and the positioning between clamping block positioning hole and positioning pin group can carry out accurate positioning to clamping block, realizes the quick accurate installation clamping block, and multiple OK clamps and the clamping block of both sides form the clamping station also, constitutes the clamping structure of multistation, improves the processing efficiency and the scope of application, and reduces the production cost. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the structural schematic diagram of tooling fixture of the utility model embodiment,

[0017] Figure 2 It is the structural schematic diagram of tooling fixture of the utility model embodiment,

[0018] Figure 3 It is the structural schematic diagram of base of the utility model embodiment,

[0019] Figure 4 It is the exploded structural schematic diagram of OK clamp and second push block of the utility model embodiment,

[0020] Figure 5 It is the structural schematic diagram of clamping block bottom surface of the utility model embodiment

[0021] Part name and serial number in drawing: 1-base 10-base screw hole 11-protrusion 12-top surface sliding slot 13-top surface screw hole 2-clamping block 20-clamping block positioning hole 21-installation through hole 3-OK clamp 30-first push block 31-inclined block 32-elastic spring 300-first screw hole 301-sliding arm 310-first sliding slot 320-inclined block recess 4-positioning pin group 40-positioning pin 41-base positioning hole 5-first bolt 6-second bolt 7-second push block 8-handle 9-baffle. DETAILED DESCRIPTION

[0022] In order to more clearly illustrate the purpose, technical scheme and advantage of the embodiment of the utility model, the utility model will be further described below in conjunction with the drawings and embodiment, and is clearly and completely described, and obviously, the described embodiment is part of the embodiment of the utility model, rather than all the embodiment. Based on the embodiment of the utility model, all other embodiments obtained by the person skilled in the art without paying creative labor belong to the protection scope of the utility model.

[0023] The utility model embodiment such as Figures 1 to 5As shown in the middle, an adjustable multi-station tooling fixture, including the base 1, the base 1 is set to a rectangular structure, the long side is on the left and right sides, the short side is on the front and back sides, and when in use, it can be installed on the corresponding workbench, the base 1 is detachably provided with a clamping block 2 on the top surface of the opposite sides, the two clamping blocks 2 are correspondingly arranged on the left and right sides of the base 1, and the clamping block 2 is detachably connected with the base 1, and the clamping block 2 is used to clamp and fix the workpiece to be machined, which is also set to a long strip shape matched with the base 1, and the side surface of the clamping block 2 for clamping the workpiece can be set according to the shape of the side surface of the workpiece to be clamped. If the side surface of the workpiece to be clamped is a plane, then the surface of the clamping block 2 for clamping is also a plane. If the side surface of the workpiece to be clamped is irregularly shaped, then corresponding clamping grooves can be provided on the clamping block 2 to match and clamp the irregularly shaped side surface of the workpiece to be clamped. In this way, different clamping blocks 2 can be set according to different workpieces, and different products can be clamped by disassembling and replacing the clamping blocks 2. The detachable connection structure of the clamping block 2 and the base 1 facilitates the disassembly and assembly of the clamping block 2, and is more convenient to use. The base 1 is also detachably provided with a plurality of OK clamps 3 between the two clamping blocks 2 and on the top surface, which form clamping stations with the two clamping blocks 2. That is, a plurality of OK clamps 3 are arranged in sequence along the front and back directions in the middle of the top surface of the base 2. The plurality of OK clamps 3 are arranged in sequence along the front and back directions in the middle of the top surface of the base 1. In this way, the left side surface of each OK clamp 3 forms a left clamping station with the left clamping block 2, and the right side surface of each OK clamp 3 forms a right clamping station with the right clamping block 2. The plurality of OK clamps 3 form a plurality of clamping stations with the left and right clamping blocks 2.

[0024] For the detachable structure of the clamping block 2 on the base 1, the top surface of each clamping block 2 is provided with a plurality of mounting holes 21 arranged side by side and spaced apart along the arrangement direction of the plurality of OK clamps, and the plurality of mounting holes 21 on each clamping block 2 are arranged side by side and spaced apart along the front-rear direction, and they are arranged at equal intervals, at which time the center line of the plurality of mounting holes 21 is on a straight line in the front-rear direction, and the mounting holes 21 are provided as threaded holes, and the base 1 is provided with a mounting hole group at a position corresponding to the mounting hole 21, and each mounting hole group includes a plurality of base threaded holes 10 arranged side by side and spaced apart from inside to outside in a direction perpendicular to the arrangement direction of the plurality of OK clamps 3, that is, the base 1 is provided with a mounting hole group corresponding to the mounting hole 21, and each mounting hole group contains a plurality of base threaded holes 10, and the plurality of base threaded holes 10 in the same mounting hole group are arranged side by side and spaced apart in the left-right direction in sequence, and the center line of the plurality of base threaded holes 10 in each mounting hole group is perpendicular to the arrangement direction of the plurality of OK clamps 3, that is, the center line of the plurality of base threaded holes 10 in the same mounting hole group is perpendicular to the arrangement direction of the plurality of OK clamps 3, and the plurality of base threaded holes 10 in each mounting hole group are equally spaced, so that the plurality of base threaded holes 10 of the plurality of mounting hole groups form a row-column structure hole structure, and a mounting hole group is a column, and the plurality of base threaded holes 10 in the corresponding positions in the plurality of mounting hole groups are a row, and the clamping block 2 is mounted in the base threaded holes 10 in the same row when the clamping block 2 is mounted; the clamping block 2 is detachably connected with the base 1 through the first bolt 5 threaded into the base threaded hole 10 through the mounting hole 21, so that when the clamping block 2 is mounted on the base 1, the mounting hole 21 is first aligned with the base threaded hole 10 in the mounting hole group corresponding to the position thereof, and then the first bolt 5 is threaded into the base threaded hole 10 through the mounting hole 21 in sequence, and the clamping block 2 is mounted on the base 1 by tightening the first bolt 5; for the same mounting hole group, the distance between the clamping block 2 and the OK clamp 3 is changed by the connection of the first bolt 5 in different base threaded holes 10, so that it can be used to clamp workpieces of different sizes, which is convenient to use and expands the application range, such as installation on the side close to the OK clamp 3, at which time the clamping distance between the OK clamp 3 and the clamping block 2 is the smallest, and installation on the side away from the OK clamp 3, at which time the clamping distance between the OK clamp 3 and the clamping block 2 is the largest.

[0025] At the same time, as Figure 5As shown in the figure, the bottom surface of each clamping block 2 is provided with a plurality of clamping block positioning holes 20 along the arrangement direction of the plurality of OK clamps 3, that is, the plurality of clamping block positioning holes 20 are arranged along the front and back direction on the bottom surface of the clamping block 2, the connecting direction of the plurality of clamping block positioning holes 20 is the same as the arrangement direction of the plurality of OK clamps 3, and the clamping block positioning hole 20 is provided as a blind hole; the top surface of the base 1 is provided with a positioning pin group 4 at a position corresponding to the clamping block positioning hole 20, that is, the top surface of the base 1 is provided with a positioning pin group 4 at a position corresponding to the clamping block positioning hole 20, and the positioning pin group 4 is used to position the clamping block 2, at this time each positioning pin group 4 includes a positioning pin 40 that can be matched and positioned with the clamping block positioning hole 20, a plurality of base positioning holes 41 that are arranged in parallel from inside to outside in the direction perpendicular to the arrangement direction of the plurality of OK clamps 3, that is, the plurality of base positioning holes 41 in each positioning pin group 4 are arranged along the left and right direction, and the plurality of base positioning holes 41 in the plurality of positioning pin groups 4 form a row-column structure, one positioning pin group 4 is a column, and the plurality of base positioning holes 41 in the corresponding position of the plurality of positioning pin groups 4 form a row, for example, for the clamping block 2 on the right side of the OK clamp 3, the base positioning hole 41 in the leftmost position of the plurality of positioning pin groups 4 corresponding to the plurality of clamping block positioning holes 20 on the right side of the clamping block 2 forms the leftmost row, the base positioning hole 41 in the rightmost position forms the rightmost row, and the base positioning holes 41 in the middle position form the middle row, that is, the spacing of the plurality of base positioning holes 41 in each positioning pin group 4 is the same; the positioning pin 40 is installed in the base positioning hole 41 in a threaded connection manner, that is, the positioning pin 40 is provided with external threads, and the inner wall of the base positioning hole 41 is provided with internal threads; in use, the positioning pin 40 is installed in the base positioning hole 41 in the same row in the plurality of positioning pin groups 4, the positioning pin 40 is matched in the clamping block positioning hole 20 to position the clamping block 2 on the base 1, and finally the clamping block 2 is fixed on the base 1 by the first bolt 5. At this time, the spacing distance between the rows in the row-column structure formed by the plurality of positioning pin groups 4 is the same as the spacing distance between the rows in the row-column structure formed by the plurality of mounting hole groups, so that when the distance of the clamping block 2 relative to the OK clamp 3 is changed, the matching and positioning between the positioning pin 40 and the clamping block positioning hole 20 can be ensured by adjusting the base positioning hole 41 in which the positioning pin 40 is installed, and the clamping block 2 can be accurately positioned by the positioning between the clamping block positioning hole 20 and the positioning pin group 4, so as to realize the fast and accurate installation of the clamping block.

[0026] Further improvement, such as Figure 3As shown in the figure, the base 1 is provided with a protrusion 11 at the position between the two clamping blocks 2 on the top surface, and the OK clamp 3 is arranged on the top surface of the protrusion 11, which facilitates the installation of the OK clamp 3 and the clamping of the workpiece between the OK clamp 3 and the clamping block 2. At this time, for the OK clamp 3, as shown in the figure, Figure 4As shown in the middle, each OK clamp 3 includes a first push block 30 with a cross-section in the shape of an inverted trapezoid, and inclined blocks 31 slidingly arranged on opposite sides of the first push block 30. The left and right side surfaces of the first push block 30 are both inclined surfaces, and the first push block 30 is similar to a wedge-shaped structure. An inclined block 31 is slidingly arranged on the left side surface of the first push block 30, and another inclined block 31 is slidingly arranged on the right side surface of the first push block 30. The right side surface of the left inclined block 31 is inclined, and the left side surface of the right inclined block 31 is also inclined. The left side surface of the first push block 30 and the right side surface of the left inclined block 31, and the right side surface of the first push block 30 and the left side surface of the right inclined block 31 form wedge-shaped sliding surfaces. The top surface of the first push block 30 is provided with a first threaded hole 300, and the top surface of the base 1 is provided with a top surface sliding groove 12 matching the horizontal sliding of the two inclined blocks 31. The top surface of the base 1 is also provided with a top surface threaded hole 13 coaxial with the first threaded hole 300. The first push block 30 is detachably connected to the base 1 through a second bolt 6 passing through the first threaded hole 300 and being threadedly connected in the top surface threaded hole 13. The top surface sliding groove 12 is in the left-right direction, and there are as many top surface sliding grooves 12 as OK clamps 3. Each top surface sliding groove 12 is slidingly provided with an OK clamp 3. The inclined blocks 31 can slide left and right in the top surface sliding groove 12 under the wedge-shaped sliding of the first push block 30. The top surface threaded hole 13 is arranged at the groove bottom of the top surface sliding groove 12. When the protrusion 11 is arranged on the base 1, the top surface sliding groove 12 is arranged on the top surface of the protrusion 11. The first push block 30 is connected to the base 1 through the second bolt 6 passing through the first threaded hole 300 and being threadedly connected in the top surface threaded hole 13, and the OK clamp 3 is also connected to the base 1. Each OK clamp 3 is detachably connected to the second push block 7 on the side away from the other inclined block 31. The second push block 7 and the surface of the clamping block 2 opposite to the second push block 7 form a clamping station. The two second push blocks 7 are detachably connected to the corresponding inclined blocks 31 through third bolts. For example, an inclined block threaded hole is arranged on the lower part of the left side surface of the left inclined block 31, and a push block through hole opposite to the inclined block threaded hole is arranged on the second push block 7 corresponding to the inclined block threaded hole. The push block through hole can be arranged as a threaded hole, and then the second push block 7 and the OK clamp 3 are connected through the third bolt passing through the push block through hole and being threadedly connected in the inclined block threaded hole. Similarly, an inclined block threaded hole is arranged on the lower part of the right side surface of the right inclined block 31, and a push block through hole opposite to the inclined block threaded hole is arranged on the second push block 7 corresponding to the inclined block threaded hole, and then the same connection is performed. In this way, the clamping station is formed between the second push block 7 and the clamping block 2, and the shape of the side surface of the second push block 7 can be set according to the shape of the workpiece. The second push block 7 is detachably connected to the OK clamp 3, which facilitates the replacement of the second push block 7 and makes the clamping station formed by the second push block 7 and the clamping block 2 applicable to the clamping of different products.If the second push block 7 is set as an L-shaped push block, the vertical part of the second push block 7 is connected to the side wall of the inclined block 31, and the horizontal part of the second push block 7 is directed away from the inclined block 31, so that the horizontal part of the second push block 7 constitutes a support seat of the clamping station formed by the second push block 7 and the clamping block 2, and forms a support for the workpiece to be clamped.

[0027] For the sliding structure between the inclined block 31 and the first push block 30, a first sliding groove 310 is arranged on the surface of each inclined block 31 opposite to the first push block 30, and a sliding arm 301 extending on the first push block 30 matches the sliding of the first sliding groove 310, that is, a first sliding groove 311 is arranged on the right surface of the left inclined block 31, and a first sliding groove 310 is also arranged on the left inclined surface of the right inclined block, then a left sliding arm 301 extends on the left side of the first push block 30, and a right sliding arm 310 extends on the right side of the first push block 30, then the two sliding arms 310 slide in the two first sliding grooves 310 correspondingly; in order to ensure smooth sliding, the first sliding groove 310 is set as a sliding groove with inverted T-shaped cross section, at this time the cross section of the sliding arm 301 is also inverted T-shaped, the sliding arm 301 matches and engages in the first sliding groove 310 and slides therein, avoiding falling off between the first sliding groove 301 and the sliding arm 301. A telescopic spring 32 is arranged between the first sliding groove 310 and the sliding arm 301, and an acting force is applied on the inclined block through the telescopic spring 32, so as to ensure more stable clamping of the workpiece, at this time an inclined block groove 320 extending in upward and downward directions is arranged on the groove bottom of the first sliding groove 301, and a push block groove (not shown in the figure) is arranged on the side of the first push block 30 opposite to the inclined block groove 320, after the first push block 30 and the inclined block 31 are connected, the push block groove covers the inclined block groove 320, and the two grooves form a cavity, the telescopic spring 32 is installed in the cavity, the top end of the telescopic spring 32 is fixedly connected to the upper groove wall of the push block groove, and the lower end of the telescopic spring is fixedly connected to the lower groove wall of the inclined block 31 sliding groove.

[0028] Further improvement, as shown in Figure 1 and Figure 2 , the base 1 is also provided with a handle 8, the handle 8 is arranged on the end face of the front end and the rear end of the base 1, which is convenient for holding the tool clamp.

[0029] Further improvement, as shown in Figures 1 to 3 , the base 1 is provided with a baffle 9 corresponding to the two ends of the clamping block 2 on the top surface, that is, the baffle 9 perpendicular to the top surface of the base 1 extends from the front end and the rear end of the top surface of the base 1, the two baffles 9 are used to limit the clamping block 2, avoiding the deviation of the clamping block 2 in the front and rear directions, and the baffle 9 can also be used as a reinforcing rib to enhance the strength of the base 1.

[0030] Although the utility model has been described in detail above with general description and specific implementation, it is obvious to those skilled in the art that some modifications or improvements can be made on the basis of the utility model. Therefore, these modifications or improvements made on the basis of not deviating from the spirit of the utility model all belong to the range of protection required by the utility model.

Claims

1. An adjustable multi-station tooling fixture, characterized by: The utility model provides a base, the base is detachably provided with one clamping block on the opposite sides of top surface, the base is detachably provided with a plurality of OK clamps between two clamping blocks and forms the clamping station with two clamping blocks in top surface, the bottom surface of each clamping block is provided with a plurality of clamping block positioning holes along the arrangement direction of a plurality of OK clamps, and the position corresponding with clamping block positioning hole is provided with positioning pin group on the top surface of base, and each positioning pin group includes a positioning pin matched with clamping block positioning hole, and a plurality of base positioning holes are detachably installed and positioned in the spacing parallel arrangement from inside to outside in the direction perpendicular to the arrangement direction of a plurality of OK clamps.

2. The adjustable multi-station tooling fixture of claim 1, wherein The top surface of each clamping block is provided with a plurality of mounting through holes along the arrangement direction of a plurality of OK clamps, and the position corresponding with mounting through hole is provided with mounting hole group on the base, and each mounting hole group includes a plurality of base screw holes spaced apart and arranged in parallel from inside to outside in the direction perpendicular to the arrangement direction of a plurality of OK clamps, and the clamping block is detachably connected with the base through the first bolt passing through the mounting through hole and being screw-connected in the base screw hole.

3. The adjustable multi-station fixture of claim 1, wherein The spacing of a plurality of base positioning holes in each positioning pin group is the same.

4. The adjustable multi-station fixture of claim 1, wherein The base is provided with a protrusion between two clamping blocks on the top surface, and the OK clamp is arranged on the top surface of the protrusion.

5. The adjustable multi-station fixture of claim 1, wherein: Each OK clamp includes a first push block with an inverted trapezoidal cross section, and an inclined block slidingly arranged on the opposite sides of the first push block, the top surface of the first push block is provided with a first threaded hole, the top surface of the base is provided with a top surface sliding groove matched with the horizontal sliding of the two inclined blocks, and the top surface of the base is further provided with a top surface threaded hole coaxial with the first threaded hole, and the first push block is detachably connected with the base through the second bolt passing through the first threaded hole and being screw-connected in the top surface threaded hole, and the side of each OK clamp away from each other is detachably connected with a second push block, and the surface between the second push block and the surface of the clamping block opposite to it forms a clamping station.

6. The adjustable multi-station tooling fixture of claim 5, wherein: A first sliding groove is arranged on the surface of each inclined block opposite to the first push block, and the first push block extends a sliding arm matched with the sliding of the first sliding groove.

7. The adjustable multi-station tooling fixture of claim 6, wherein The cross section of the first sliding groove is in inverted T-shaped structure.

8. The adjustable multi-station tooling fixture of claim 6, wherein A telescopic spring is arranged between the first sliding groove and the sliding arm.

9. The adjustable multi-station fixture of claim 1, wherein The base is further provided with a handle.

10. The adjustable multi-station fixture of claim 1, wherein The base is provided with a baffle on the top surface corresponding to the two ends of the clamping block.

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