A tooling fixture

Abstract

The utility model discloses a tool fixture, which includes a base and a rotating seat, and a clamping mechanism is installed on the rotating seat. The clamping mechanism includes a driving member, a linkage assembly and a clamping assembly, and the linkage assembly includes a pull plate and a push rod. The pull plate can slide back and forth in the horizontal direction, and two push rods are provided. A linkage structure is provided between the two push rods and the pull plate. The two push rods can be synchronously pushed up and pulled down in the vertical direction under the action of the pull plate and the two groups of linkage structures; the clamping assembly includes a first clamping block that is synchronously linked up and down with the first push rod, and a second clamping block that is synchronously linked up and down with the second push rod; the rotating seat is fixed with a first guide block and a second guide block, and a guide structure is provided between the two guide blocks and the clamping blocks on the same side. Under the action of the two groups of guide structures, the two clamping blocks can gradually move away from each other during the synchronous upward movement process, and gradually move closer to each other during the synchronous downward movement process. The utility model can adjust the angle of the workpiece, and the two clamping blocks have high synchronization and balanced clamping force.

Description

Technical Field

[0001] The utility model belongs to the technical field of workpiece processing tools, and in particular relates to a tool fixture. Background Art

[0002] In the process of machining workpieces, it is necessary to use a clamp to clamp and fix the workpiece. Most workpieces, such as sliders, have multiple machining surfaces. Since it is difficult to adjust the working angle of the turning and milling tools, the angle of the workpiece is mostly adjusted during machining to meet the machining of multiple machining surfaces. However, most existing clamps cannot adjust the angle of the workpiece. For workpieces with multiple machining surfaces, they need to be removed and re-clamped after adjusting the posture, which affects the machining efficiency of the workpiece. In addition, errors are inevitable during the re-clamping of the workpiece, thereby affecting the machining accuracy of the workpiece. In addition, most existing clamps clamp the workpiece through the movement of two clamping blocks. The two clamping blocks are driven by two driving parts respectively. The synchronization and clamping force balance of the two clamping blocks cannot be guaranteed, which also affects the machining accuracy of the workpiece. Summary of the invention

[0003] The utility model provides a tooling fixture to solve the above technical problems, which can adjust the angle of the workpiece and ensure the synchronization of the clamping block and the balance of the clamping force. The invention objective of the utility model is achieved through the following technical solutions:

[0004] A tool fixture comprises a base and a rotating seat rotatably arranged on the base, a clamping mechanism is installed on the rotating seat, the clamping mechanism comprises a driving member, a linkage assembly and a clamping assembly, the linkage assembly comprises a pull plate and a push rod, the pull plate can slide back and forth in the horizontal direction under the drive of the driving member, the push rod is provided with two, namely a first push rod and a second push rod, a first linkage structure that cooperates with each other is provided between the first push rod and the pull plate, a second linkage structure that cooperates with each other is provided between the second push rod and the pull plate, the first push rod and the second push rod can synchronously push up and down in the vertical direction under the action of the pull plate and the two sets of linkage structures Synchronous pulling down; the clamping assembly includes a first clamping block that is synchronously linked up and down with the first push rod, and a second clamping block that is synchronously linked up and down with the second push rod, the first clamping block and the second clamping block are arranged opposite to each other, and a clamping space is formed between the two; a first guide block and a second guide block are fixed on the rotating seat, a first guide structure that cooperates with each other is provided between the first guide block and the first clamping block, and a second guide structure that cooperates with each other is provided between the second guide block and the second clamping block, and the first clamping block and the second clamping block can gradually move away from each other during the synchronous upward movement under the action of the two push rods and the two groups of guide structures, and gradually move closer together during the synchronous downward movement.

[0005] Preferably, the first linkage structure includes a first linkage inclined groove provided on the pull plate, and a first linkage pin fixed on the first push rod, and the first linkage pin can slide relative to the pull plate along the length direction of the first linkage inclined groove; the second linkage structure includes a second linkage inclined groove provided on the pull plate, and a second linkage pin fixed on the second push rod, and the second linkage pin can slide relative to the pull plate along the length direction of the second linkage inclined groove; the first linkage inclined groove and the second linkage inclined groove are consistent in length and inclination angle.

[0006] Preferably, the first push rod and the second push rod both include a push-up section and a linkage section, the push-up section extends horizontally, and the linkage section extends vertically, and the first clamping block and the second clamping block are both provided with embedding grooves, the notches of the two embedding grooves are arranged facing each other, and the push-up sections of the first push rod and the second push rod are embedded in the embedding grooves on the same side.

[0007] Preferably, the first linkage pin is vertically arranged on the linkage section of the first push rod, and the second linkage pin is vertically arranged on the linkage section of the second push rod; two insertion holes are provided on the rotating seat, and the linkage sections of the first push rod and the second push rod are respectively inserted into the corresponding insertion holes.

[0008] Preferably, the first guide structure includes a first dovetail tenon protruding from the outer wall of the first clamping block, and a first dovetail groove provided on the first guide block, and the first dovetail tenon is slidably embedded in the first dovetail groove; the second guide structure includes a second dovetail tenon protruding from the outer wall of the second clamping block, and a second dovetail groove provided on the second guide block, and the second dovetail tenon is slidably embedded in the second dovetail groove.

[0009] Preferably, the first dovetail groove has a first outwardly inclined groove wall which gradually inclines outward from bottom to top, and the first dovetail tenon has a first abutment wall which abuts against the first outwardly inclined groove wall, and the first abutment wall gradually inclines outward from bottom to top; the second dovetail groove has a second outwardly inclined groove wall which gradually inclines outward from bottom to top, and the second dovetail tenon has a second abutment wall which abuts against the second outwardly inclined groove wall, and the second abutment wall gradually inclines outward from bottom to top; the first abutment wall and the second abutment wall have the same inclination angle relative to the vertical direction, but have opposite inclination directions.

[0010] Preferably, the first cushion block is detachably clamped on the inner side wall of the first clamping block, the second cushion block is detachably clamped on the inner side wall of the second clamping block, and the inner side walls of the first cushion block and the second cushion block opposite to each other serve as clamping walls.

[0011] Preferably, a first card slot extending from front to back is formed on the inner side wall of the first clamping block, and a first card block which is embedded in the first card slot is protruded from the outer side wall of the first cushion block; a second card slot extending from front to back is formed on the inner side wall of the second clamping block, and a second card block which is embedded in the second card slot is protruded from the outer side wall of the second cushion block.

[0012] Preferably, the driving member is a cylinder mounted on a rotating seat, and a mounting plate connected to the cylinder is vertically provided at the driving end of the pulling plate.

[0013] Preferably, the rotating seat is suspended on a base, and a motor and a reducer are mounted on the base. One end of the rotating seat is drive-connected to the motor, and the other end of the rotating seat is rotatably connected to the base via a bearing.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the entire clamping mechanism is arranged on a rotating seat, and the angle of the workpiece can be adjusted by adjusting the angle of the rotating seat, so that multi-processing surface processing can be realized without re-clamping, thereby improving the processing efficiency and processing accuracy of the workpiece; the linkage component structure is reasonably arranged, and the pull plate cooperates with the two push rods, and only one driving member is required to realize the driving of the two clamping blocks, and the two clamping blocks have high synchronization and balanced clamping force; the guide structure between the guide block and the clamping block adopts a dovetail groove and a dovetail tenon, which can guide the movement of the clamping block and realize the assembly connection between the clamping block and the guide block; the dovetail groove and the dovetail tenon are provided with an outwardly inclined groove wall and an abutting wall that abut against each other, so that the two clamping blocks can move away from and close together to complete the clamping in the process of moving up and down, and the guide block can provide a horizontal holding force for the clamping block, and the clamping force provided by the clamping block is more balanced and reliable; pads are clamped on the clamping blocks, and the pads can be replaced according to the size of the workpiece, thereby improving the adaptability of the fixture. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the rotating seat and the clamping mechanism in the utility model;

[0017] Figure 3 It is a longitudinal cross-sectional schematic diagram of the rotating seat and the clamping mechanism in the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the clamping mechanism in the utility model;

[0019] Markings in the figure: base 10; motor 11; bearing seat 12; rotating seat 20; cylinder 21; pull plate 31; first linkage inclined slot 311; second linkage inclined slot 312; assembly plate 313; first push rod 32; first linkage pin 321; second push rod 33; second linkage pin 331; top section 34; linkage section 35; first clamping block 41; first dovetail tenon 411; second clamping block 42; second dovetail tenon 421; first cushion block 51; first clamping block 511; second cushion block 52; second clamping block 521; first guide block 61; first outward-inclined groove wall 611; second guide block 62; second outward-inclined groove wall 621; workpiece 70. DETAILED DESCRIPTION

[0020] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings:

[0021] See also Figure 1-Figure 4 This embodiment discloses a fixture, which is mainly used for slider processing, and includes a base 10, and a rotating seat 20 rotatably arranged on the base 10, the rotating seat 20 is equipped with a clamping mechanism, the rotating seat 20 is suspended on the base 10, the base 10 is equipped with a motor 11 and a reducer, one end of the rotating seat 20 is connected to the motor 11 for driving, and the other end of the rotating seat 20 is connected to the base 10 for rotation through a bearing, and the bearing is assembled in a bearing seat 12. When the slider has multiple processing surfaces, the slider angle can be changed by rotating the rotating seat 20 as needed, and multiple processing surfaces can be processed without removing the slider and re-clamping, thereby improving processing efficiency and processing accuracy.

[0022] The clamping mechanism includes a driving member, a linkage assembly and a clamping assembly, the linkage assembly includes a pull plate 31 and a push rod, the pull plate 31 can slide back and forth in the horizontal direction under the drive of the driving member, in this embodiment, the driving member is an oil cylinder 21 assembled on the rotating seat 20, and the driving end of the pull plate 31 is vertically provided with a mounting plate 313 connected to the oil cylinder 21; there are two push rods, namely a first push rod 32 and a second push rod 33, a first linkage structure that cooperates with each other is provided between the first push rod 32 and the pull plate 31, and a second linkage structure that cooperates with each other is provided between the second push rod 33 and the pull plate 31, and the first push rod 32 and the second push rod 33 can be synchronously pushed up and down in the vertical direction under the action of the pull plate 31 and the two sets of linkage structures. Synchronous pull-down; the clamping assembly includes a first clamping block 41 that is synchronously linked with the first push rod 32, and a second clamping block 42 that is synchronously linked with the second push rod 33. The first clamping block 41 and the second clamping block 42 are arranged opposite to each other, and a clamping space is formed between the two. The rotating seat 20 is fixed with a first guide block 61 and a second guide block 62. A first guide structure that cooperates with each other is provided between the first guide block 61 and the first clamping block 41, and a second guide structure that cooperates with each other is provided between the second guide block 62 and the second clamping block 42. The first clamping block 41 and the second clamping block 42 can gradually move away from each other during the synchronous upward movement under the action of the two push rods and the two sets of guide structures, and gradually move closer during the synchronous downward movement. The pull plate 31 cooperates with the two push rods, and only one driving member is required to realize the driving of the two clamping blocks. The two clamping blocks have high synchronization and balanced clamping force.

[0023] The first linkage structure includes a first linkage inclined groove 311 provided on the pull plate 31, and a first linkage pin 321 fixed on the first push rod 32, and the first linkage pin 321 can slide relative to the pull plate 31 along the length direction of the first linkage inclined groove 311; the second linkage structure includes a second linkage inclined groove 312 provided on the pull plate 31, and a second linkage pin 331 fixed on the second push rod 33, and the second linkage pin 331 can slide relative to the pull plate 31 along the length direction of the second linkage inclined groove 312; the first linkage inclined groove 311 and the second linkage inclined groove 312 have the same length and inclination angle, and the linkage inclined groove and the linkage pin cooperate to convert the horizontal movement of the pull plate 31 into the horizontal movement of the two push rods Vertical movement; the first push rod 32 and the second push rod 33 both include a push-up section 34 and a linkage section 35, the push-up section 34 extends horizontally, and the linkage section 35 extends vertically, the first clamping block 41 and the second clamping block 42 are both provided with embedding grooves, the notches of the two embedding grooves are arranged opposite to each other, and the push-up sections 34 of the first push rod 32 and the second push rod 33 are embedded in the embedding grooves on the same side; the first linkage pin 321 is vertically arranged on the linkage section 35 of the first push rod 32, and the second linkage pin 331 is vertically arranged on the linkage section 35 of the second push rod 33; two insertion holes are provided on the rotating seat 20, and the linkage sections 35 of the first push rod 32 and the second push rod 33 are respectively inserted into the corresponding insertion holes. The push rod is arranged in sections, and the linkage pin is assembled on the linkage section 35 to realize the linkage between the push rod and the pull plate 31. The top section 34 can transmit the force to the corresponding clamping block to realize the linkage between the clamping block and the push rod, so that the driving force provided by the cylinder 21 is finally transmitted to the clamping block.

[0024] The first guide structure includes a first dovetail tenon 411 protruding from the outer wall of the first clamping block 41, and a first dovetail groove provided on the first guide block 61, and the first dovetail tenon 411 is slidably embedded in the first dovetail groove; the second guide structure includes a second dovetail tenon 421 protruding from the outer wall of the second clamping block 42, and a second dovetail groove provided on the second guide block 62, and the second dovetail tenon 421 is slidably embedded in the second dovetail groove. The guide structure between the guide block and the clamping block adopts a dovetail groove and a dovetail tenon, which can guide the movement of the clamping block and realize the assembly connection between the clamping block and the guide block, so that the structure of the entire clamp is more compact; the first dovetail groove has a first outward-inclined groove wall 611 that gradually inclines from bottom to top, and the first dovetail tenon 411 has a first abutment wall abutting against the first outwardly inclined groove wall 611, and the first abutment wall gradually inclines outward from bottom to top; the second dovetail groove has a second outwardly inclined groove wall 621 gradually inclining outward from bottom to top, and the second dovetail tenon 421 has a second abutment wall abutting against the second outwardly inclined groove wall 621, and the second abutment wall gradually inclines outward from bottom to top; the first abutment wall and the second abutment wall have the same inclination angle relative to the vertical direction, but the inclination directions are opposite, the dovetail groove and the dovetail tenon are provided with outwardly inclined groove walls and abutment walls abutting against each other, so that the two clamping blocks can move away and closer to complete the clamping action during the up and down movement, the two supporting blocks have high synchronization, and the two guide blocks can provide horizontal supporting force for the two clamping blocks, and the clamping force of the clamping blocks is more balanced and reliable.

[0025] In order to improve the adaptability of the fixture and adapt to workpieces 70 of different sizes, the inner side wall of the first clamping block 41 is detachably connected with a first cushion block 51, and the inner side wall of the second clamping block is detachably connected with a second cushion block 52. The inner side walls of the first cushion block 51 and the second cushion block 52 are opposite to each other as clamping walls; the inner side wall of the first clamping block 41 is provided with a first slot running through the front and back, and the outer side wall of the first cushion block 51 is provided with a first block 511 that is embedded in the first slot; the inner side wall of the second clamping block 42 is provided with a second slot running through the front and back, and the outer side wall of the second cushion block 52 is provided with a second block 521 that is embedded in the second slot. When using the fixture, cushion blocks of different types can be selected according to the size of the workpiece 70, and the cushion blocks are connected with the clamping blocks for easy assembly and disassembly.

[0026] It should be understood that in the claims and description of the utility model, all "including..." should be understood as open-ended meanings, that is, their meanings are equivalent to "at least including...", and should not be understood as closed-ended meanings, that is, their meanings should not be understood as "only including...". The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated.

[0027] The above is only a specific implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should be covered by the protection scope of the utility model.

Claims

1. A fixture, characterized in that: The invention comprises a base and a rotating seat rotatably arranged on the base, wherein a clamping mechanism is installed on the rotating seat, wherein the clamping mechanism comprises a driving member, a linkage assembly and a clamping assembly, wherein the linkage assembly comprises a pull plate and a push rod, wherein the pull plate can slide back and forth in a horizontal direction under the drive of the driving member, wherein two push rods are provided, namely a first push rod and a second push rod, wherein a first linkage structure mutually cooperating with the pull plate is provided between the first push rod and the pull plate, wherein a second linkage structure mutually cooperating with the pull plate is provided between the second push rod and the pull plate, wherein the first push rod and the second push rod can synchronously push up and pull down in a vertical direction under the action of the pull plate and the two sets of linkage structures; wherein the clamping assembly comprises a first clamping block synchronously linked up and down with the first push rod, and A second clamping block is synchronously linked up and down with the second push rod, and the first clamping block and the second clamping block are arranged opposite to each other to form a clamping space therebetween; a first guide block and a second guide block are fixed on the rotating seat, a first guide structure that cooperates with each other is arranged between the first guide block and the first clamping block, and a second guide structure that cooperates with each other is arranged between the second guide block and the second clamping block; under the action of the two push rods and the two sets of guide structures, the first clamping block and the second clamping block can gradually move away from each other during the synchronous upward movement and gradually move closer together during the synchronous downward movement.

2. A fixture according to claim 1, characterized in that: The first linkage structure includes a first linkage inclined slot provided on the pull plate, and a first linkage pin fixed on the first push rod, the first linkage pin being able to slide relative to the pull plate along the length direction of the first linkage inclined slot; The second linkage structure includes a second linkage inclined groove opened on the pull plate, and a second linkage pin fixed on the second push rod, the second linkage pin can slide relative to the pull plate along the length direction of the second linkage inclined groove; the first linkage inclined groove and the second linkage inclined groove are consistent in length and inclination angle.

3. A fixture according to claim 2, characterized in that: The first push rod and the second push rod both include a push-up section and a linkage section, the push-up section extends horizontally, and the linkage section extends vertically. The first clamping block and the second clamping block are both provided with embedding grooves, and the notches of the two embedding grooves are arranged facing each other. The push-up sections of the first push rod and the second push rod are embedded in the embedding grooves on the same side.

4. A fixture according to claim 3, characterized in that: The first linkage pin is vertically arranged on the linkage section of the first push rod, and the second linkage pin is vertically arranged on the linkage section of the second push rod; two insertion holes are arranged on the rotating seat, and the linkage sections of the first push rod and the second push rod are respectively inserted into the corresponding insertion holes.

5. A fixture according to any one of claims 1 to 4, characterized in that: The first guide structure includes a first dovetail tenon protruding from the outer wall of the first clamping block, and a first dovetail groove opened on the first guide block, and the first dovetail tenon is slidably embedded in the first dovetail groove; the second guide structure includes a second dovetail tenon protruding from the outer wall of the second clamping block, and a second dovetail groove opened on the second guide block, and the second dovetail tenon is slidably embedded in the second dovetail groove.

6. A fixture according to claim 5, characterized in that: The first dovetail groove has a first outwardly inclined groove wall that gradually inclines outward from bottom to top, and the first dovetail tenon has a first abutment wall that abuts against the first outwardly inclined groove wall, and the first abutment wall gradually inclines outward from bottom to top; the second dovetail groove has a second outwardly inclined groove wall that gradually inclines outward from bottom to top, and the second dovetail tenon has a second abutment wall that abuts against the second outwardly inclined groove wall, and the second abutment wall gradually inclines outward from bottom to top; the first abutment wall and the second abutment wall have the same inclination angle relative to the vertical direction, but have opposite inclination directions.

7. A fixture according to claim 1, characterized in that: The first cushion block is detachably clamped on the inner side wall of the first clamping block, the second cushion block is detachably clamped on the inner side wall of the second clamping block, and the inner side walls of the first cushion block and the second cushion block opposite to each other serve as clamping walls.

8. A fixture according to claim 7, characterized in that: A first card slot extending from front to back is formed on the inner side wall of the first clamping block, and a first card block which is embedded in the first card slot is protruded from the outer side wall of the first cushion block; a second card slot extending from front to back is formed on the inner side wall of the second clamping block, and a second card block which is embedded in the second card slot is protruded from the outer side wall of the second cushion block.

9. A fixture according to claim 1, characterized in that: The driving member is a cylinder mounted on a rotating seat, and a mounting plate connected to the cylinder is vertically arranged at the driving end of the pulling plate.

10. A fixture according to claim 9, characterized in that: The rotating seat is suspended on the base, and a motor is installed on the base. One end of the rotating seat is connected to the motor driving, and the other end of the rotating seat is rotatably connected to the base through a bearing.

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