CN219170622U

CN219170622U - Hydraulic combined vice with limit sensing function

Info

Publication number: CN219170622U
Application number: CN202320029497.4U
Authority: CN
Inventors: 田彬彬
Original assignee: Shenzhen Xinyuanhao Hardware Technology Co ltd
Current assignee: Shenzhen Xinyuanhao Hardware Technology Co ltd
Priority date: 2023-01-06
Filing date: 2023-01-06
Publication date: 2023-06-13
Anticipated expiration: 2033-01-06

Abstract

The utility model discloses a hydraulic combined vice with a limit sensing function, which comprises a base, a pull-down jaw assembly, a fixed jaw assembly and a hydraulic cylinder, wherein the base is provided with a fixed jaw; the lower pulling clamp assembly is arranged on a base, and comprises a translation block and a lower pulling mechanism, wherein a limit sensing device for detecting whether a workpiece is clamped or not is arranged on the base, and the limit sensing device is positioned beside the lower pulling clamp assembly; the fixed jaw assembly is provided with a positioning sensing device for sensing the position of a workpiece and whether the workpiece is arranged on the fixed jaw assembly. Through the cooperation setting spacing induction system and location induction system, utilize the location induction system can be used for responding to the position of work piece and whether have the work piece on the fixed assembly of keeping silent, utilize spacing induction system can detect whether the work piece has to press from both sides tightly, so expanded the versatility of vice function, can realize better automated processing with the lathe cooperation, bring convenience for production operation.

Description

Hydraulic combined vice with limit sensing function

Technical Field

The utility model relates to the technical field of vices, in particular to a hydraulic combined vice with a limit sensing function.

Background

The vice is a tool for clamping a workpiece by relatively moving two jaws by using a screw or other mechanism. The vice is generally composed of a base, a vice body, a fixed jaw, a movable jaw and a transmission mechanism for moving the movable jaw. Different types of bench vices and machine vices are available according to the application occasions. The bench vice is arranged on the bench work workbench for the bench worker to clamp the workpiece so as to process sawing, filing and the like. The jaw of the bench vice is generally higher and is arched, and the body of the bench vice can be rotated and fastened on the base at will. The vice is an accessory of machine tool, also called flat tongs, and is generally installed on the working table of milling machine, drilling machine, shaper and surface grinder. Compared with bench vices, the machine vice has wide and low jaw, large clamping force and high precision requirement. The machine vice has various types, and can be classified into a common type and a precise type according to precision. The precision type machine tool is used for finishing machine tools such as surface grinding machines, boring machines and the like. The machine vice structure can be divided into a rotary type with a base, a fixed type without a base, a tiltable type and the like.

In order to provide the machining efficiency of workpieces, a multi-station vice is currently available, which can clamp a plurality of workpieces at the same time, and the multi-station vice is used as a clamping tool commonly used in machining and has a significant role in machining. However, the existing multi-station vice is manually locked and clamped when in use, and if the existing multi-station vice needs to manually loosen and lock the jaw when clamping a workpiece each time, the clamping time is slow, the clamping efficiency of the multi-station vice is low due to human factors, the clamping precision is greatly influenced by the human factors, and the requirement of efficient production cannot be met.

Therefore, the multi-station vice is improved in the prior art, such as the hydraulic adjustable multi-station vice disclosed in Chinese patent (patent number 202220964296.9), by arranging the hydraulic cylinder, the hydraulic cylinder is utilized to drive the pull-down block to move up and down, and then the pull-down block drives the translation block to move back and forth laterally so as to match the fixed jaw assembly to realize quick clamping of a workpiece, the clamping stability is good, the precision is high, the uncertainty factor of manual clamping is reduced, the time for single workpiece disassembly and assembly can not exceed 10 seconds, the clamping efficiency of a machine tool is greatly improved, the efficiency is several times of that of manual clamping, and the waiting gap between the manual work and the machine tool is saved, thereby being beneficial to improving the production and machining efficiency of the machine tool.

However, the hydraulic adjustable multi-station vice cannot detect whether a workpiece is clamped or not, cannot sense the position of the workpiece and whether the workpiece is arranged on the fixed jaw assembly, has a single function, and cannot be matched with a machine tool to realize better automatic processing. Thus, there is a need for improvements to current vises.

Disclosure of Invention

In view of the above, the present utility model aims at overcoming the drawbacks of the prior art, and its main objective is to provide a hydraulic combined vice with a limit sensing function, which can effectively solve the problem that the existing vice cannot be matched with a machine tool to realize better automatic processing due to single function.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

a hydraulic combined vice with a limit sensing function comprises a base, a pull-down jaw assembly, a fixed jaw assembly and a hydraulic cylinder; the pull-down clamp assembly is arranged on the base and comprises a translation block and a pull-down mechanism, wherein the translation block can be laterally and movably arranged on the base back and forth, and the pull-down mechanism can be vertically and movably arranged on the base and can promote the translation block to laterally and outwards move; the fixed jaw assembly is arranged on the base and matched with the translation block to clamp and lock the workpiece, and a clamping groove is formed between the fixed jaw assembly and the pull-down jaw assembly; the hydraulic cylinder is arranged on the base and drives the pull-down mechanism to move up and down; the base is provided with a limit sensing device for detecting whether a workpiece is clamped or not, and the limit sensing device is positioned beside the pull-down jaw assembly; the fixed jaw assembly is provided with a positioning sensing device for sensing the position of a workpiece and whether the workpiece is arranged on the fixed jaw assembly.

As a preferable scheme, the limit sensing device comprises a fixed seat, a limit switch, a poking piece, a spring and a poking rod; the fixing seat is fixed on the outer side surface of the base; the limit switch is fixed on the fixed seat; the poking piece is arranged in the base in a vertically swinging way through a pin, the upper end of the poking piece is positioned beside the lower pulling mechanism and is abutted against the lower pulling mechanism, and the lower pulling mechanism moves up and down to control the poking piece to swing up and down; the spring is connected between the lower end of the toggle piece and the base and drives the toggle piece to reset; one end of the poking rod is fixed on the poking plate, the other end of the poking rod extends out of the base and is matched with the limit switch, the poking rod triggers or breaks away from the limit switch along with the reciprocating movement of the poking plate, and the poking rod is simple in structure and good in stability.

As a preferred scheme, offer the arc guide hole on the fixing base, this arc guide hole is extended in the slope from top to bottom, and this poking rod is arranged in the arc guide hole along arc guide hole round trip movement, and this limit switch is arranged in the lower extreme side of arc guide hole to make poking rod activity steady.

As a preferable scheme, the fixing seat is fixed on the outer side face of the base through a plurality of first bolts, and the limit switch is fixed on the fixing seat through a plurality of second bolts, so that the structure is simple, and the disassembly and the assembly are convenient.

As a preferable scheme, the positioning sensing device comprises a positioning rod, a positioning strip, a positioning pin and a position sensor; the positioning rod is fixed on the outer side surface of the fixed jaw assembly and longitudinally extends; the positioning strip transversely extends and is arranged on the positioning rod in a longitudinally and transversely adjustable position; the locating pin and the position sensor are arranged on the locating strip side by side and are positioned on the outer side of the clamping groove, the locating pin is used for adjusting the position of a workpiece, the workpiece is clamped at the middle position of the clamping groove as much as possible, deformation of the vice clamping process is reduced, the precision of the workpiece and the practicability of the vice are further guaranteed, and the position sensor is used for sensing whether the workpiece is placed on the fixed jaw assembly or not.

As a preferable scheme, the locating rod is sleeved with a C-shaped piece, a fixing hole is formed in the clamping opening of the C-shaped piece, a strip-shaped hole is formed in one end of the locating rod, the strip-shaped hole transversely extends, a first screw penetrates through the strip-shaped hole to be connected and fixed with the fixing hole in a threaded mode, and the locating rod is simple in structure and convenient to install and adjust.

As a preferable scheme, the locating strip is provided with a fixing piece, two ends of the fixing piece are fixed at the other end of the locating strip through second screws so as to clamp and fix the locating pin and the position sensor, and the locating strip is simple in structure and convenient to install and adjust.

As a preferable scheme, the two ends of the top of the translation block are both fixed with first outer jackets, and first knurls are distributed on the first outer jackets so as to increase friction between the first outer jackets and the workpiece and further ensure the clamping precision of the workpiece.

As a preferable scheme, the two ends of the top of the fixed jaw assembly are both fixed with second outer jackets, and second knurls are distributed on the second outer jackets so as to increase friction between the second outer jackets and the workpiece and further ensure the clamping precision of the workpiece.

Compared with the prior art, the utility model has obvious advantages and beneficial effects, and in particular, the technical scheme can be as follows:

through the cooperation setting spacing induction system and location induction system, utilize the location induction system can be used for responding to the position of work piece and whether have the work piece on the fixed assembly of keeping silent, utilize spacing induction system can detect whether the work piece has to press from both sides tightly, so expanded the versatility of vice function, can realize better automated processing with the lathe cooperation, bring convenience for production operation.

In order to more clearly illustrate the structural features and efficacy of the present utility model, the present utility model will be described in detail below with reference to the accompanying drawings and examples.

Drawings

FIG. 1 is a schematic perspective view of a preferred embodiment of the present utility model;

FIG. 2 is a schematic perspective view of another angle of the preferred embodiment of the present utility model;

FIG. 3 is a front view of a preferred embodiment of the present utility model;

FIG. 4 is a top view of a preferred embodiment of the present utility model;

FIG. 5 is a cross-sectional view of a preferred embodiment of the present utility model;

FIG. 6 is another cross-sectional view of the preferred embodiment of the present utility model.

The attached drawings are used for identifying and describing:

10. base 11, T-shaped chute

12. Rack 13, cavity

101. Clamping groove 20 and pull-down jaw assembly

21. Translation block 22 and pull-down mechanism

23. First outer jacket 24, third screw

201. First knurling 30, fixed jaw assembly

31. Second outer jacket 32, fourth screw

301. Second knurling 40, hydraulic cylinder

50. Limit sensing device 51 and fixing seat

52. Limit switch 53 and toggle piece

54. Spring 55 and toggle rod

56. First bolt 57, second bolt

58. Pin 501 and arc guide hole

60. Positioning sensing device 61 and positioning rod

62. Positioning strip 63 and positioning pin

64. Position sensor 65, C-shaped member

66. First screw 67 and fixing member

68. Second screw 601, bar hole.

Detailed Description

Referring to fig. 1 to 6, a preferred embodiment of the present utility model is shown, which comprises a base 10, a pull-down jaw assembly 20, a fixed jaw assembly 30, and a hydraulic cylinder 40.

The top surface of the base 10 is concavely provided with an inverted T-shaped chute 11, the inverted T-shaped chute 11 transversely extends, the top surface of the base 10 is provided with two racks 12, and the two racks 12 transversely extend and are respectively positioned at two sides of the inverted T-shaped chute 11; the bottom of the base 10 is formed with a cavity 13, and the cavity 13 communicates with the inverted T-shaped chute 11.

The pull-down jaw assembly 20 is disposed on the base 10, the pull-down jaw assembly 20 includes a translation block 21 and a pull-down mechanism 22, the translation block 21 is movably disposed on the base 10 laterally back and forth, and the pull-down mechanism 22 is movably disposed on the base 10 vertically and causes the translation block 21 to move laterally outwards. The pull-down jaw assembly 20 is cooperatively installed with the inverted T-shaped chute 11 and the two racks 12, and the pull-down jaw assembly 20 may be a one-way pull-down jaw assembly or a two-way pull-down jaw assembly. In the present embodiment, the pull-down jaw assembly 20 is a two-way pull-down jaw assembly, and the number of pull-down jaw assemblies 20 is two, but not limited to.

The fixed jaw assembly 30 is disposed on the base 10 and cooperates with the translation block 21 to clamp and lock the workpiece, and a clamping groove 101 is formed between the fixed jaw assembly 30 and the pull-down jaw assembly 20. In this embodiment, the fixed jaw assembly 30 is mounted in cooperation with the inverted T-shaped chute 11 and the two racks 12, and the fixed jaw assembly 30 may be a unidirectional fixed jaw assembly or a bidirectional fixed jaw assembly, and in this embodiment, the fixed jaw assembly 30 is plural and is located at two sides of the corresponding pull-down jaw assembly 20 respectively.

The hydraulic cylinder 40 is arranged on the base 10 and drives the pull-down mechanism 22 to move up and down; in this embodiment, the hydraulic cylinder 40 is located in the cavity 13, and a hydraulic cylinder 40 is disposed for each pull-down mechanism 22 of the pull-down jaw assembly 20, and the hydraulic cylinder 40 is a dual-rod hydraulic cylinder.

The base 10 is provided with a limit sensing device 50 for detecting whether a workpiece is clamped or not, and the limit sensing device 50 is located beside the pull-down jaw assembly 20. Specifically, the limit sensing device 50 includes a fixed seat 51, a limit switch 52, a toggle piece 53, a spring 54 and a toggle rod 55; the fixing base 51 is fixed on the outer side surface of the base 10, and in this embodiment, the fixing base 51 is fixed on the outer side surface of the base 10 by a plurality of first bolts 56; the limit switch 52 is fixed on the fixed seat 51, and in this embodiment, the limit switch 52 is fixed on the fixed seat 51 by a plurality of second bolts 57; the poking piece 53 is arranged in the concave cavity 13 of the base 10 in a vertically swinging way through a pin 58, the upper end of the poking piece 53 is positioned beside the pull-down mechanism 22 and is abutted against the pull-down mechanism 22, and the pull-down mechanism 22 moves up and down to control the poking piece 53 to swing up and down; the spring 54 is connected between the lower end of the toggle piece 53 and the base 10 and urges the toggle piece 53 to reset; one end of the poking rod 55 is fixed on the poking plate 53, the other end of the poking rod 55 extends out of the base 10 and is matched with the limit switch 52, the poking rod 55 triggers or breaks away from the limit switch 52 along with the reciprocating movement of the poking plate 53, in this embodiment, an arc-shaped guide hole 501 is formed in the fixing seat 51, the arc-shaped guide hole 501 extends in an up-down inclined manner, the poking rod 55 is located in the arc-shaped guide hole 501 and moves back and forth along the arc-shaped guide hole 501, and the limit switch 52 is located beside the lower end side of the arc-shaped guide hole 501.

The fixed jaw assembly 30 is provided with a positioning sensing device 60 for sensing the position of the workpiece and whether the workpiece is positioned on the fixed jaw assembly 30. Specifically, the positioning sensing device 60 includes a positioning rod 61, a positioning bar 62, a positioning pin 63 and a position sensor 64; the positioning rod 61 is fixed on the outer side surface of the fixed jaw assembly 30 and extends longitudinally; the positioning strip 62 extends transversely, and the positioning strip 62 is arranged on the positioning rod 61 in a longitudinally and transversely adjustable position; the locating pin 63 and the position sensor 64 are arranged on the locating strip 62 side by side and are positioned on the outer side of the clamping groove 101, the locating pin 63 is used for adjusting the position of a workpiece, the workpiece is clamped at the middle position of the clamping groove 101 as much as possible, deformation of the vice during clamping is reduced, and the precision of the workpiece and the practicability of the vice are further guaranteed. In the embodiment, the positioning rod 61 is sleeved with a C-shaped member 65, a fixing hole (not shown) is formed at a clamping opening of the C-shaped member 65, a bar-shaped hole 601 is formed at one end of the positioning bar 62, the bar-shaped hole 601 extends transversely, and a first screw 66 passes through the bar-shaped hole 601 to be screwed and fixed with the fixing hole, so that the C-shaped member 65 is fixed on the positioning rod 61, and meanwhile, the positioning bar 62 is fixed on the C-shaped member 65. And a fixing member 67 is provided on the positioning bar 62, and both ends of the fixing member 67 are fixed to the other end of the positioning bar 62 by second screws 68 to clamp and fix the positioning pin 63 and the position sensor 64, so as to adjust, install and fix the longitudinal positions of the positioning pin 63 and the position sensor 64.

The two ends of the top of the translation block 21 are both fixed with a first outer jacket 23, and first knurls 201 are distributed on the first outer jacket 23 to increase friction force between the first outer jacket 23 and a workpiece, further ensure the clamping precision of the workpiece, and the first outer jacket 23 is fixed on the translation block 21 through a third screw 24. And, the two ends of the top of the fixed jaw assembly 30 are both fixed with a second outer jacket 31, and the second outer jacket 31 is distributed with second knurls 301 to increase the friction between the second outer jacket 31 and the workpiece, further ensuring the clamping precision of the workpiece, and the second outer jacket 31 is fixed on the top of the fixed jaw assembly 30 by a fourth screw 32.

The working principle of the embodiment is described in detail as follows:

when the hydraulic combined vice is used, the hydraulic combined vice is fixed on a machine tool, the hydraulic cylinder 40, the limit switch 52 and the position sensor 64 are connected with a control system of the machine tool, in an original state, the toggle rod 55 and the limit switch 52 are kept, the limit switch 52 can automatically clamp a contact signal for the control system, and the state that the vice is not clamped is displayed; firstly, adjusting any angle of the positioning strip 62 to enable a workpiece to find a proper processing position for fixing; next, placing the workpiece on the pull-down jaw assembly 20 and the fixed jaw assembly 30 and in the clamping groove 101; when the position sensor 64 is triggered by a workpiece, it indicates that the workpiece has been placed on the fixed jaw assembly 30; then, the control system controls the hydraulic cylinder 40 to work, the hydraulic cylinder 40 drives the pull-down mechanism 22 to move downwards, so that the translation block 21 moves laterally outwards to clamp a workpiece between the translation block 21 and the fixed jaw assembly 30, the pull-down mechanism 22 drives the upper end of the stirring piece 53 to move downwards in the downward moving process of the pull-down mechanism 22, the stirring rod 55 moves along with the stirring piece 53, so that the stirring rod 55 is separated from the limit switch 52 and is not contacted with the limit switch 52 any more, at the moment, the limit switch 52 automatically clamps a separation signal for the control system, and the vice is in a working state, so that whether the workpiece is clamped by the vice is detected, the versatility of the vice function is further expanded, and the automatic processing function of the vice in a machine tool is further improved.

The design focus of the utility model is that: through the cooperation setting spacing induction system and location induction system, utilize the location induction system can be used for responding to the position of work piece and whether have the work piece on the fixed assembly of keeping silent, utilize spacing induction system can detect whether the work piece has to press from both sides tightly, so expanded the versatility of vice function, can realize better automated processing with the lathe cooperation, bring convenience for production operation.

The foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the technical scope of the present utility model, so any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical principles of the present utility model are still within the scope of the technical solutions of the present utility model.

Claims

1. A hydraulic combined vice with a limit sensing function comprises a base, a pull-down jaw assembly, a fixed jaw assembly and a hydraulic cylinder; the pull-down clamp assembly is arranged on the base and comprises a translation block and a pull-down mechanism, wherein the translation block can be laterally and movably arranged on the base back and forth, and the pull-down mechanism can be vertically and movably arranged on the base and can promote the translation block to laterally and outwards move; the fixed jaw assembly is arranged on the base and matched with the translation block to clamp and lock the workpiece, and a clamping groove is formed between the fixed jaw assembly and the pull-down jaw assembly; the hydraulic cylinder is arranged on the base and drives the pull-down mechanism to move up and down; the method is characterized in that: the base is provided with a limit sensing device for detecting whether a workpiece is clamped or not, and the limit sensing device is positioned beside the pull-down jaw assembly; the fixed jaw assembly is provided with a positioning sensing device for sensing the position of a workpiece and whether the workpiece is arranged on the fixed jaw assembly.

2. The hydraulic combination vice with limit sensing function according to claim 1, wherein: the limit sensing device comprises a fixed seat, a limit switch, a poking piece, a spring and a poking rod; the fixing seat is fixed on the outer side surface of the base; the limit switch is fixed on the fixed seat; the poking piece is arranged in the base in a vertically swinging way through a pin, the upper end of the poking piece is positioned beside the lower pulling mechanism and is abutted against the lower pulling mechanism, and the lower pulling mechanism moves up and down to control the poking piece to swing up and down; the spring is connected between the lower end of the toggle piece and the base and drives the toggle piece to reset; one end of the poking rod is fixed on the poking plate, the other end of the poking rod extends out of the base and is matched with the limit switch, and the poking rod triggers or breaks away from the limit switch along with the reciprocating movement of the poking plate.

3. The hydraulic combination vice with limit sensing function according to claim 2, wherein: the fixed seat is provided with an arc guide hole, the arc guide hole extends in an up-down inclined mode, the poking rod is located in the arc guide hole and moves back and forth along the arc guide hole, and the limit switch is located beside the lower end side of the arc guide hole.

4. The hydraulic combination vice with limit sensing function according to claim 2, wherein: the fixing seat is fixed on the outer side face of the base through a plurality of first bolts, and the limit switch is fixed on the fixing seat through a plurality of second bolts.

5. The hydraulic combination vice with limit sensing function according to claim 1, wherein: the positioning sensing device comprises a positioning rod, a positioning strip, a positioning pin and a position sensor; the positioning rod is fixed on the outer side surface of the fixed jaw assembly and longitudinally extends; the positioning strip transversely extends and is arranged on the positioning rod in a longitudinally and transversely adjustable position; the locating pin and the position sensor are arranged on the locating strip side by side and are positioned outside the clamping groove.

6. The hydraulic combination vice with limit sensing function according to claim 5, wherein: the locating rod is sleeved with a C-shaped piece, a fixing hole is formed in the clamping opening of the C-shaped piece, a strip-shaped hole is formed in one end of the locating rod, the strip-shaped hole transversely extends, and a first screw penetrates through the strip-shaped hole to be in threaded connection and fixing with the fixing hole.

7. The hydraulic combination vice with limit sensing function according to claim 6, wherein: the locating strip is provided with a fixing piece, and two ends of the fixing piece are fixed at the other end of the locating strip through second screws so as to clamp and fix the locating pin and the position sensor.

8. The hydraulic combination vice with limit sensing function according to claim 1, wherein: and the two ends of the top of the translation block are both fixed with a first outer jacket, and first knurls are distributed on the first outer jacket.

9. The hydraulic combination vice with limit sensing function according to claim 1, wherein: and second outer jackets are fixed at two ends of the top of the fixed jaw assembly, and second knurls are distributed on the second outer jackets.