CN220592306U - Penetrate bench frock clamp for back plate - Google Patents

Abstract

The utility model relates to the field of tool fixtures, and discloses a tool fixture for a shooting table rear plate, which comprises a support frame and locking pieces, wherein a scissor type telescopic mechanism is arranged in the support frame, connecting pieces are hinged at joints at two sides of the scissor type telescopic mechanism, movable grooves through which the locking pieces can pass are arranged at two sides of the support frame, one end, far away from the support frame, of each locking piece is detachably connected with the shooting table rear plate, one end, close to the support frame, of each locking piece passes through the movable groove and is detachably connected with the connecting piece, the telescopic of each locking piece is controlled by the telescopic of the scissor type telescopic mechanism, the telescopic of the scissor type telescopic mechanism is controlled by a driving part, and the tool fixture for the shooting table rear plate can save manpower and has consistent clamping force.

Description

Penetrate bench frock clamp for back plate

Technical Field

The utility model relates to the field of tool fixtures, in particular to a tool fixture for a shooting table rear plate.

Background

The injection table rear plate is a common accessory on an injection molding machine and is used for pushing the injection table to reciprocate so as to realize feeding and injection molding, a piston hole, a guide rod hole and a wire rail surface are formed in the injection table rear plate, and a reference surface parallel to the wire rail surface is formed in the injection table rear plate and provided with a pair of positioning holes and a plurality of threaded holes for facilitating simultaneous processing of the wire rail surface and the guide rod hole.

The Chinese patent with the bulletin number of CN210476215U discloses a clamp for a rear plate of a shooting table, which comprises a fixed bottom plate, wherein a first mounting hole for fixing the whole clamp is formed in the fixed bottom plate, a vibration reduction seat is fixedly mounted on the upper surface of the fixed bottom plate, a supporting frame for supporting is fixedly mounted at the upper end of the vibration reduction seat, a mounting top plate for placing a workpiece is fixedly mounted on the upper surface of the supporting frame, and a plurality of groups of second mounting holes are formed in the mounting top plate.

According to the structure, the shooting table rear plate is fixedly matched with the plurality of groups of second mounting holes, four groups of second mounting holes are shown in the drawing, parts and mounting blocks on the clamp are required to be aligned and then locked during mounting, a screw rod and a nut locking mode is generally utilized during locking, manual double-hand tools are required to operate, one hand is required to use rotation of a tool limiting bolt, the other hand is required to screw the nuts by using a spanner and then the spanner is converted into double-hand spanner to further fasten the nuts, because the weight of the shooting table rear plate is large, different people can lead to different screw nut tightening degrees due to different force, vibration or offset of different degrees are generated in subsequent machining of the shooting table rear plate, and the machining precision of the shooting table rear plate is reduced, so that the manual screwing mode has the problems of labor and insufficient machining precision.

Disclosure of Invention

The utility model provides a tool clamp for the shooting platform rear plate, which is labor-saving and has consistent clamping force, aiming at the defect that the deviation interval is large when the shooting platform rear plate is processed due to the fact that the clamping of the clamp for the existing shooting platform rear plate is laborious and manual.

In order to solve the technical problems, the utility model is solved by the following technical scheme:

the utility model provides a penetrate bench frock clamp, including support frame and retaining member, be provided with in the support frame and cut fork telescopic machanism, cut the both sides joint department of fork telescopic machanism and articulated have the connecting piece, the both sides of support frame are provided with the movable groove that can supply the retaining member to pass, the retaining member is kept away from one end of support frame and is connected with penetrating the bench back plate can be dismantled, the retaining member is close to one end of support frame and passes the movable groove after can dismantle the link with the connecting piece, the flexible of retaining member is controlled by cutting fork telescopic machanism's flexible, cut fork telescopic machanism's flexible is controlled by a drive unit, when the retaining member shrink, penetrate the bench back plate and be in locking state; when the locking piece stretches out, the shooting table back plate is in an unlocking state.

By adopting the scheme, after the structure is combined with the locking piece and the connecting piece to be used in the lifting field, all joints on two sides of the scissor type telescopic mechanism are always in synchronous telescopic motion and the telescopic scale is always consistent when the scissor type telescopic mechanism stretches, so that when the connecting piece is used for enabling the joints and the locking piece to form linkage, all the locking pieces can be driven to always in synchronous motion and the motion stroke is consistent, and when the scissor type telescopic mechanism stretches, the joints on two ends of the scissor type telescopic mechanism shrink towards the middle part, so that the locking piece pulls the shooting back plate to be abutted with the supporting frame, and the shooting back plate is in a compressed state; when the scissor type telescopic mechanism retracts, the joint expands outwards, the shooting table back plate is in an unlocking state, the shooting table back plate can be disassembled and replaced at the moment, the driving piece can be utilized to synchronously drive all locking pieces to lock the shooting table back plate on the supporting frame, locking forces are consistent, and meanwhile, all the locking pieces can be synchronously driven to unlock the shooting table back plate, so that labor can be remarkably saved, and consistency of clamping forces is always guaranteed.

Preferably, the scissor type telescopic mechanism comprises a pair of first connecting rods which are synchronously hinged to the output end of the driving part, a pair of second connecting rods which are synchronously hinged to one end of the supporting frame far away from the driving part, and a pair of third connecting rods, wherein two ends of each third connecting rod are respectively hinged between the first connecting rods and the second connecting rods, the middle parts of the third connecting rods are mutually crossed and hinged, and the hinged ends of the first connecting rods, the third connecting rods and the second connecting rods and the third connecting rods form joints.

By adopting the scheme, the middle parts of the third connecting rods are mutually hinged in a crossed manner, so that the displacement generated by the joints of the first connecting rods and the second connecting rods is consistent when the scissor type telescopic mechanism is deformed, and the overall clamping force of the clamp is consistent.

Preferably, the third connecting rod is hinged with more than one pair from head to tail, and the joints are formed at the hinged positions of the adjacent third connecting rods.

By adopting the scheme, the fixture has symmetrical double stations, and a plurality of pairs of third connecting rods are arranged to extend in the length direction of the support frame, so that the assembly and subsequent processing efficiency are further improved.

Preferably, the locking member comprises a pull rod body, a threaded section which is arranged at one end of the pull rod body and can be matched with a threaded hole of the shooting table rear plate, and a matching part which is arranged at one end of the pull rod body far away from the threaded section and can be detachably connected with the connecting member.

By adopting the scheme, when the pull rod body is arranged in the support frame, the matching part is connected with the connecting piece, so that the shooting table back plate can be linked with the scissor type telescopic mechanism.

Preferably, the matching part comprises a clamping section which is convexly arranged at one end of the pull rod body far away from the thread section and has a diameter smaller than that of the pull rod body, and a limiting block which is arranged at the end part of the clamping section and has a diameter larger than that of the clamping section, one side of the connecting piece which is turned downwards is respectively sunken with a slot and a clamping groove for the insertion of the limiting block and the clamping section, and the limiting block is abutted to one side of the slot close to the clamping groove.

By adopting the scheme, the clamping section and the limiting block are respectively arranged in the clamping groove and the slot, when the joint contracts towards the middle part, the limiting block is abutted against one side, close to the clamping groove, of the slot and pulls the pull rod body to move towards the inside of the support frame, and then the shooting table rear plate is clamped on the outer wall of the support frame.

Preferably, the support frame is provided with a positioning part for limiting the movement or rotation of the shooting table back plate, and the positioning part comprises at least two positioning columns which are concavely arranged on two sides of the support frame and are in plug-in fit with the positioning holes on the shooting table back plate.

By adopting the scheme, two or more positioning columns can limit the movement or rotation of the rear plate of the shooting table.

Preferably, the side wall of the support frame is convexly provided with a constant-height cushion block which is used for limiting the ejection platform back plate and is abutted with the side wall of the support frame by taking the movable groove as the center.

By adopting the scheme, the equal-height cushion block is abutted with the datum plane on the shooting table rear plate, so that a gap exists between the shooting table rear plate and the supporting frame, and more avoidance space is reserved for the cutter and the main shaft during processing.

Preferably, the driving component is a cylinder, an oil cylinder or an electric push rod.

With the adoption of the scheme, the driving part refers to a machine which can drive the scissor type telescopic mechanism to perform linear reciprocating motion, and the driving part comprises but is not limited to an air cylinder, an oil pipe or an electric push rod.

The utility model has the remarkable technical effects due to the adoption of the technical scheme: the scissor type telescopic mechanism is an existing structure which is widely applied in the lifting field, after the structure is combined with the locking pieces and the connecting pieces, as the scissor type telescopic mechanism stretches and contracts, all joints on two sides of the scissor type telescopic mechanism are always in synchronous telescopic motion and the telescopic dimensions are always consistent, when the connecting pieces are used for enabling the joints and the locking pieces to form linkage, all the locking pieces can be driven to always in synchronous motion and the motion travel is consistent, when the scissor type telescopic mechanism stretches, the joints on two ends of the scissor type telescopic mechanism shrink towards the middle part, so that the locking pieces pull the shooting table rear plate to be abutted with the supporting frame, and the shooting table rear plate is in a compressed state; when the scissor type telescopic mechanism retracts, the joint expands outwards, the shooting table back plate is in an unlocking state, the shooting table back plate can be disassembled and replaced at the moment, the driving piece can be utilized to synchronously drive all locking pieces to lock the shooting table back plate on the supporting frame, locking forces are consistent, and meanwhile, all the locking pieces can be synchronously driven to unlock the shooting table back plate, so that labor can be remarkably saved, and consistency of clamping forces is always guaranteed.

Drawings

FIG. 1 is an isometric view of a tool clamp for clamping a part for a stage back plate according to the present embodiment;

fig. 2 is an isometric view of a tool clamp for a shooting table back plate in the present embodiment;

FIG. 3 is an enlarged view of a portion of FIG. 2A;

fig. 4 is a sectional view of a tool holder for a stage back plate of the present embodiment;

FIG. 5 is an isometric view of the connector of the present embodiment mated with a retaining member;

fig. 6 to 7 are perspective views of the stage back plate in the present embodiment.

The names of the parts indicated by the numerical reference numerals in the above drawings are as follows: 1. a support frame; 2. a locking member; 201. a pull rod body; 202. a threaded section; 203. a clamping section; 204. a limiting block; 3. a scissor fork type lifting mechanism; 301. a first link; 302. a second link; 303. a third link; 4. a movable groove; 5. a connecting piece; 6. a positioning part; 601. positioning columns; 602. a contour cushion block; 7. a cylinder; 8. a shooting table back plate; 801. a piston bore; 802. a guide rod hole; 803. a wire rail surface; 804. a reference surface; 805. positioning holes; 806. and (3) a threaded hole.

Detailed Description

The present utility model will be described in further detail with reference to the accompanying drawings and examples.

Examples

According to the embodiment shown in fig. 2, the driving component is a cylinder 7, the scissor type telescopic mechanism comprises a pair of first connecting rods 301 which are synchronously hinged to the end parts of piston rods of the cylinder 7, one ends of the support frame 1, which are far away from the cylinder 7, are synchronously hinged with second connecting rods 302, third connecting rods 303 with two ends respectively hinged with the first connecting rods 302 are arranged between the first connecting rods 302 and the second connecting rods 302, the middle parts of the third connecting rods 303 are mutually hinged in a crossed mode, joints are formed at the hinged ends of the first connecting rods 303, the third connecting rods 303 and the second connecting rods 303, the joints are hinged with connecting pieces 5, movable grooves 4 are formed at two sides of the support frame 1, locking pieces 2 with one ends detachably connected with the shooting table rear plates 8 and the other ends detachably connected with the connecting pieces 5 are penetrated in the movable grooves 4, the expansion and contraction of the piston rods of the cylinder 7 can drive the expansion and contraction of the scissor type telescopic mechanism, the expansion and contraction of the scissor type telescopic mechanism can drive the fork type locking pieces 2, and the locking pieces 2 can be in a locking state when the locking pieces 2 shrink, and the shooting table rear plates 8 are in a locking state, and the shooting table rear plates 8 can be processed; when the locking piece 2 stretches out, the shooting table rear plate 8 is in an unlocking state, at the moment, the shooting table rear plate 8 can be disassembled and replaced, and as the locking piece 2 is always in synchronous motion and the motion stroke is always consistent, the clamping force of the shooting table rear plate 8 can be ensured to be consistent, so that the vibration and offset generated during processing are reduced, the processing precision of the shooting table rear plate 8 is improved, and the labor can be remarkably saved during processing.

The third connecting rod 303 can be hinged with a pair or more from head to tail, and the hinge joint of the adjacent third connecting rod 303 is formed when a plurality of pairs of third connecting rods 303 are arranged, so that a plurality of groups of stations can be additionally arranged on the clamp by adopting the scheme, in the embodiment, the third connecting rod 303 is provided with a pair, and two stations can be symmetrically arranged on two sides of the support frame 1 due to symmetry of the scissor type telescopic mechanism, so that the assembly and processing efficiency is improved.

According to the illustration in fig. 3 or fig. 5, the retaining member 2 comprises a pull rod body 201, one end of the pull rod body 201 is provided with a threaded section 202 matched with a threaded hole 806 of the shooting table rear plate 8, one end of the pull rod body 201 away from the threaded section 202 is provided with a matching part detachably matched with the connecting member 5, the matching part comprises a clamping section 203 which is convexly arranged at one end of the pull rod body 201 away from the threaded section 202 and has a smaller diameter than the pull rod body 201, the end of the clamping section 203 is provided with a limiting block 204 with a larger diameter than the clamping section 203, one side of the connecting member 5 which is turned downwards is respectively sunken with a slot and a clamping groove into which the limiting block 204 and the clamping section 203 can be inserted, the clamping section 203 and the limiting block 204 can be arranged in the slot, and when the joint contracts towards the middle part, the clamping groove is abutted against the limiting block 204 and pulls the pull rod body 201 to be locked.

According to the illustration in fig. 3, a positioning part 6 for limiting the movement or rotation of the shooting table back plate 8 is provided on the support frame 1, the positioning part 6 comprises two positioning posts 601 which are concavely provided on two sides of the support frame 1 and are in plug-in fit with positioning holes 805 on the shooting table back plate 8, a constant-height cushion block 602 for limiting the abutment of the shooting table back plate 8 and the side wall of the support frame 1 is convexly provided on the side wall of the support frame 1 by taking a movable groove 4 as the center, and the constant-height cushion block 602 abuts against a reference surface 804 on the shooting table back plate 8, so that a gap exists between the shooting table back plate 8 and a clamp, and more avoidance space is reserved for a cutter and a main shaft during processing.

The assembly process of the tool clamp for the shooting table rear plate is shown as follows, and in combination with the process shown in fig. 1, 2, 5 or 7, the threaded section 202 on the locking piece 2 is screwed into the threaded hole 806, in this embodiment, one shooting table rear plate 8 is screwed into four, next the shooting table rear plate 8 is transported to the vicinity of the clamp, the locking piece 2 is aligned with the movable groove 4 and inserted, next the positioning column 601 is aligned with the positioning hole 805 for inserting and positioning, the movement and rotation of the shooting table rear plate 8 are limited, next the connecting piece 5 is turned over onto the clamping section 203 of the locking piece 2 by using manpower for inserting and checking whether the connecting piece is completely matched with the clamping section, next the cylinder 7 is started to drive the scissor type telescopic mechanism to stretch, so that the shooting table rear plate 8 is tightly attached to the equal-height cushion block 602, and the assembly is completed.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (8)

1. The utility model provides a penetrate platform frock clamp for back plate, includes support frame (1) and retaining member (2), its characterized in that: the novel telescopic device is characterized in that a scissor type telescopic mechanism is arranged in the support frame (1), connecting pieces (5) are hinged to joints at two sides of the scissor type telescopic mechanism, movable grooves (4) through which locking pieces (2) can penetrate are formed in two sides of the support frame (1), one ends, far away from the support frame (1), of the locking pieces (2) are detachably connected with the shooting table rear plate (8), one ends, close to the support frame (1), of the locking pieces (2) penetrate through the movable grooves (4) and are detachably connected with the connecting pieces (5), the telescopic operation of the locking pieces (2) is controlled by the telescopic operation of the scissor type telescopic mechanism, the telescopic operation of the scissor type telescopic mechanism is controlled by a driving component, and when the locking pieces (2) shrink, the shooting table rear plate (8) is in a locking state; when the locking piece (2) stretches out, the shooting table back plate (8) is in an unlocking state.

2. The tool clamp for the shooting table rear plate according to claim 1, wherein: the scissor type telescopic mechanism comprises a pair of first connecting rods (301) which are synchronously hinged to the output end of the driving part, a pair of second connecting rods (302) which are synchronously hinged to one end, far away from the driving part, of the supporting frame (1), and a pair of third connecting rods (303) which are respectively hinged between the first connecting rods (301) and the second connecting rods (302) and are mutually crossed and hinged in the middle, wherein the hinged ends of the first connecting rods (301) and the third connecting rods (303) and the hinged ends of the second connecting rods (302) and the third connecting rods (303) form joints.

3. The tool clamp for the shooting table rear plate according to claim 2, wherein: the third connecting rods (303) are hinged with more than one pair from head to tail, and the joints are formed at the hinged positions of the adjacent third connecting rods (303).

4. A tool clamp for a rear panel of an injection stand according to claim 3, wherein: the locking piece (2) comprises a pull rod body (201), a threaded section (202) which is arranged at one end of the pull rod body (201) and can be matched with a threaded hole (806) of the shooting table rear plate (8), and a matching part which is arranged at one end of the pull rod body (201) away from the threaded section (202) and can be detachably connected with the connecting piece (5).

5. The tool clamp for the shooting table rear plate according to claim 4, wherein: the cooperation portion includes that diameter that protruding one end of keeping away from screw thread section (202) in pull rod body (201) established is less than joint section (203) of pull rod body (201) and is greater than stopper (204) of joint section (203) in the diameter that joint section (203) tip set up, one side that connecting piece (5) were overturn downwards is sunken respectively to have slot and draw-in groove that can supply stopper (204) and joint section (203) male, and stopper (204) butt is close to one side of draw-in groove in the slot.

6. The tool clamp for the shooting table rear plate according to claim 1, wherein: the positioning device is characterized in that a positioning part (6) for limiting the movement or rotation of the shooting table rear plate (8) is arranged on the support frame (1), and the positioning part (6) comprises at least two positioning columns (601) which are concavely arranged on two sides of the support frame (1) respectively and are in plug-in fit with the positioning holes (805) on the shooting table rear plate (8).

7. The tool clamp for the shooting table rear plate according to claim 6, wherein: the side wall of the support frame (1) is convexly provided with a constant-height cushion block (602) which is used for limiting the shooting table back plate (8) and is abutted with the side wall of the support frame (1) by taking the movable groove (4) as the center.

8. The tool clamp for the shooting table rear plate according to claim 1, wherein: the driving part is an air cylinder (7) or an oil cylinder or an electric push rod.