CN219403300U

CN219403300U - Machining clamp

Info

Publication number: CN219403300U
Application number: CN202223604939.8U
Authority: CN
Inventors: 请求不公布姓名
Original assignee: Lyric Robot Boluo Intelligent Machinery Co ltd
Current assignee: Lyric Robot Boluo Intelligent Machinery Co ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-07-25
Anticipated expiration: 2032-12-30

Abstract

The utility model discloses a processing clamp which comprises a pressing mechanism, wherein the pressing mechanism comprises a clamping groove seat, a pressing block, a pull rod and a driving piece, a supporting surface is formed on the top end face of the clamping groove seat, the pull rod is connected to the pressing block, the pull rod and the pressing block form a T-shaped assembly, pressing surfaces are formed on the two sides of the pull rod on the bottom end face of the pressing block, and the driving piece is used for driving the pull rod to drive the pressing block to move so as to clamp a workpiece between the supporting surface and the pressing surface. According to the technical scheme, the pull rod is connected with the pressing block to form the T-shaped assembly, the driving piece drives the T-shaped assembly to perform clamping action, the whole processing clamp can position and clamp batch workpieces, and time consumption is reduced in repeated fixing and dismounting operation processes.

Description

Machining clamp

Technical Field

The utility model is used in the field of machining and positioning, and particularly relates to a machining clamp.

Background

In the numerical control precision machining process, the machining of special-shaped part products is involved. When the same or special-shaped parts are processed in batches, repeated operations of fixing and disassembling for many times are needed for the same parts in order to achieve consistent quality specifications in the processing process, so that the process is more time-consuming. And in the precision machining process, the fixture is required to have stability when the part product is required to be fixed, and the common fixture easily shakes in the machining process when the part is fixed, so that the precision control of machining is not facilitated, and further, the defect product is generated. Furthermore, the parts are easy to be damaged in the disassembling and fixing process.

Disclosure of Invention

The utility model aims to at least solve one of the technical problems in the prior art and provides a processing clamp.

The technical scheme adopted for solving the technical problems is as follows:

the utility model provides a processing anchor clamps, includes hold-down mechanism, hold-down mechanism includes draw-in groove seat, briquetting, pull rod and driving piece, the top terminal surface of draw-in groove seat forms the holding surface, the pull rod connect in the briquetting, the pull rod with the briquetting forms T shape subassembly, the bottom terminal surface of briquetting in the both sides of pull rod form the holding surface, the driving piece is used for the drive the pull rod drives the briquetting removes in order to press from both sides the work piece clamp in between the holding surface with the holding surface.

In combination with the above implementation manners, in some implementation manners, the pull rod is connected with the pressing block through a pin shaft, the pressing block is provided with a first pin shaft hole, one end of the pull rod connected with the pressing block is provided with a second pin shaft hole, and the pin shaft is installed in the first pin shaft hole and the second pin shaft hole and is rotationally connected with the pressing block.

In combination with the above implementation manners, in some implementation manners, the pressing block is provided with a pull rod mounting hole perpendicular to the first pin shaft hole, one end, connected with the pressing block, of the pull rod is embedded into the pull rod mounting hole and is connected with the pressing block through the pin shaft, and the pull rod can rotate around the pin shaft in a certain range in the pull rod mounting hole.

In combination with the above implementations, in some implementations, the pin shaft is detachably mounted to the first pin shaft hole and the second pin shaft hole.

In combination with the above implementation manners, in some implementation manners, a first V-shaped groove is formed on the compression surface of the pressing block, and a second V-shaped groove is formed on the support surface of the clamping groove seat at a position corresponding to the first V-shaped groove.

In combination with the above implementations, in some implementations, the pressing mechanism includes a first pressing mechanism and a second pressing mechanism, a position of a first V-shaped groove of the first pressing mechanism corresponds to a position of a first V-shaped groove of the second pressing mechanism, and a position of a second V-shaped groove of the first pressing mechanism corresponds to a position of a second V-shaped groove of the second pressing mechanism.

In combination with the above implementation manner, in some implementation manners, the clamping groove seat of the first pressing mechanism and the clamping groove seat of the second pressing mechanism have the same height.

In combination with the above implementation, in some implementations, the clamping groove seat of the first pressing mechanism and the clamping groove seat of the second pressing mechanism have different heights.

In combination with the above implementation manner, in some implementation manners, the processing fixture further includes a bottom plate and a lateral pushing mechanism, the clamping groove seat is arranged on the bottom plate, the lateral pushing mechanism is arranged on the top of the bottom plate and is located on at least one side of the pressing mechanism, the lateral pushing mechanism is used for pushing the workpiece from the lateral direction of the pressing mechanism, and the lateral pushing mechanism includes a fixed block connected with the bottom plate and a spring poking bead arranged on the fixed block.

In combination with the above implementation manner, in some implementation manners, a cushion block is arranged at the bottom of the bottom plate, the driving piece comprises a driving cylinder arranged at the bottom of the bottom plate, the pull rod penetrates through the bottom plate to be connected with the output end of the driving cylinder, and a control valve for controlling the driving cylinder is arranged on the bottom plate.

One of the above technical solutions has at least one of the following advantages or beneficial effects: in the technical scheme of the utility model, the pull rod is connected with the pressing block to form the T-shaped assembly, a plurality of positioning spaces capable of placing workpieces are formed between the pressing surface of the pressing block and the supporting surface of the clamping groove seat, and the positioning spaces are positioned on two sides of the pull rod. Specifically in the use operation process, put the work piece in the location space of pull rod both sides respectively, then pass through the T shape subassembly that drive piece drive pull rod and briquetting formed, the drive piece applys effort to the briquetting through the pull rod, under the effect of this effort, the briquetting is close to the draw-in groove seat to finally fix a position the work piece locking between the briquetting to the draw-in groove seat. According to the technical scheme, the pull rod is connected with the pressing block to form the T-shaped assembly, the driving piece drives the T-shaped assembly to perform clamping action, the whole processing clamp can position and clamp batch workpieces, and time consumption is reduced in repeated fixing and dismounting operation processes.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic diagram of one embodiment of the present utility model;

FIG. 2 is a side view of the structure of one embodiment shown in FIG. 1;

FIG. 3 is a schematic view of the press block, tie rod, pin and driver configuration of one embodiment shown in FIG. 1;

FIG. 4 is a schematic view of another embodiment of the present utility model;

fig. 5 is a side view of the structure of one embodiment shown in fig. 4.

Detailed Description

Reference will now be made in detail to the present embodiments of the present utility model, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present utility model, but not to limit the scope of the present utility model.

In the present utility model, if directions (up, down, left, right, front and rear) are described, they are merely for convenience of description of the technical solution of the present utility model, and do not indicate or imply that the technical features must be in a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the present utility model, "a plurality of" means one or more, and "a plurality of" means two or more, and "greater than", "less than", "exceeding", etc. are understood to not include the present number; "above", "below", "within" and the like are understood to include this number. In the description of the present utility model, the description of "first" and "second" if any is used solely for the purpose of distinguishing between technical features and not necessarily for the purpose of indicating or implying a relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the present utility model, unless clearly defined otherwise, terms such as "disposed," "mounted," "connected," and the like should be construed broadly and may be connected directly or indirectly through an intermediate medium, for example; the connecting device can be fixedly connected, detachably connected and integrally formed; can be mechanically connected, electrically connected or capable of communicating with each other; may be a communication between two elements or an interaction between two elements. The specific meaning of the words in the utility model can be reasonably determined by a person skilled in the art in combination with the specific content of the technical solution.

The embodiment of the utility model provides a processing clamp which can be used for positioning and clamping workpieces and parts on processing equipment.

A processing clamp comprises a bottom plate 100 and a pressing mechanism 200, wherein the bottom plate 100 is used for fixedly mounting clamp parts such as the pressing mechanism 200. The pressing mechanism 200 comprises a clamping groove seat 201, a pressing block 202, a pull rod 203 and a driving piece 205, wherein the clamping groove seat 201 is arranged on the bottom plate 100, the clamping groove seat 201 has a certain height, the top end surface of the clamping groove seat 201 forms a supporting surface, the pull rod 203 is connected with the pressing block 202, the pull rod 203 and the pressing block 202 form a T-shaped assembly, the bottom end surface of the pressing block 202 forms a pressing surface on two sides of the pull rod 203, and the driving piece 205 is used for driving the pull rod 203 to drive the pressing block 202 to move so as to clamp a workpiece between the supporting surface and the pressing surface, namely, between the clamping groove seat 201 and the pressing block 202.

In the technical scheme of the utility model, the pull rod 203 is connected with the pressing block 202 to form a T-shaped assembly, a plurality of positioning spaces capable of placing workpieces are formed between the pressing surface of the pressing block 202 and the supporting surface of the clamping groove seat 201, and the positioning spaces are positioned on two sides of the pull rod 203. Specifically, in the use operation process, workpieces are placed in the positioning spaces on two sides of the pull rod 203 respectively, then the drive piece 205 drives the T-shaped assembly formed by the pull rod 203 and the pressing block 202, the drive piece 205 applies acting force to the pressing block 202 through the pull rod 203, the pressing block 202 approaches the clamping groove seat 201 under the action of the acting force, and finally the workpieces are positioned and locked between the pressing block 202 and the clamping groove seat 201. In the technical scheme of the utility model, the pull rod 203 is connected with the pressing block 202 to form a T-shaped assembly, and the driving piece 205 drives the T-shaped assembly to perform clamping action, so that the whole processing clamp can position and clamp batch workpieces, and the time consumption is less in the repeated operation processes of repeated fixing and dismounting.

In some embodiments, referring to fig. 1, 2 and 3, the pull rod 203 is connected to the press block 202 through a pin 204, the press block 202 is provided with a first pin hole, one end of the pull rod 203 connected to the press block 202 is provided with a second pin hole, and the pin 204 is mounted in the first pin hole and the second pin hole and connects the pull rod 203 to the press block 202 in a rotating manner. A revolute pair is formed between the pull rod 203 and the pressing block 202, and when a workpiece is clamped, the two ends of the pressing block 202 are not required to be fixed. The positioning mode of automatic centering and balancing clamping on the two sides of the middle part is adopted, so that the positioning and clamping of a plurality of workpieces on the processing clamp can be realized quickly, and meanwhile, the positioning and clamping device has higher stability and facilitates the precise control treatment of the workpieces.

Further, referring to fig. 3, the pressing block 202 is provided with a pull rod mounting hole 206 perpendicular to the first pin shaft hole, one end, connected with the pressing block 202, of the pull rod 203 is embedded into the pull rod mounting hole 206 and is connected with the pressing block 202 through the pin shaft 204, so that the overall stress is more balanced, the pull rod 203 can rotate around the pin shaft 204 in a certain range in the pull rod mounting hole 206, and the T-shaped assembly can be aligned and clamped quickly in the clamping process.

Further, the pin 204 is detachably installed in the first pin hole and the second pin hole, and when the pin 204 is removed, the pressing block 202 can be separated from the pull rod 203. In this embodiment, the detachable pin 204 is used to form a pin, which facilitates the fixing and dismounting of the whole pressing mechanism 200 and the workpiece, and reduces the dismounting and fastening time.

In some embodiments, referring to fig. 1, 2 and 3, a first V-shaped groove 207 is provided on the compression surface of the pressing block 202, and a second V-shaped groove is provided on the support surface of the clamping groove seat 201 at a position corresponding to the first V-shaped groove 207. The design of V-arrangement groove has the steadiness when guaranteeing to process anchor clamps fixed spare part product in the precision finishing process, avoids appearing rocking in the course of working, more is favorable to processing precision control, and then avoids the flaw product to produce. In addition, the design of V-arrangement groove can be suitable for the diameter inconsistent cylindricality spare part and use to also can make the fastening point area between spare part and the clamp plate minimum, further reduce the damage rate of tearing open solid in-process, the product.

The pressing mechanism 200 may be provided with one or more groups according to the positioning requirements, for example, in some embodiments, referring to fig. 1, 2, 4, and 5, the pressing mechanism 200 includes a first pressing mechanism and a second pressing mechanism, where the first pressing mechanism and the second pressing mechanism are spaced apart on the base plate 100 by a distance, and the position of the first V-shaped groove 207 of the first pressing mechanism corresponds to the position of the first V-shaped groove 207 of the second pressing mechanism, and the position of the second V-shaped groove of the first pressing mechanism corresponds to the position of the second V-shaped groove of the second pressing mechanism. The first pressing mechanism and the second pressing mechanism form a plurality of rows of V-shaped grooves for clamping the workpiece through corresponding position setting relations, and each row of V-shaped grooves can clamp different positions of the workpiece, such as two ends. During the use operation, one workpiece is placed in the V-grooves along the same row in the length direction, and the other workpiece is placed on the V-grooves of an adjacent row. Two pressing blocks 202 are respectively pressed above two workpieces, each pressing block 202 acts on the same clamping groove seat 201 through a hole in the center of the pressing block 202, and at the moment, two ends of the pressing block 202 are not fixed, so that a plurality of parts can be placed on one processing clamp, and the two parts are installed in the processing clamp in a group.

Wherein the clamping groove seat 201 of the first pressing mechanism and the clamping groove seat 201 of the second pressing mechanism have the same height or different heights. For example, in the embodiment shown in fig. 1 and 2, the clamping groove seat 201 of the first pressing mechanism of the machining clamp can be applied to a machining clamp with an eccentric shaft part, wherein central axes of two ends of the part are parallel but not on the same line, and the clamping groove seat 201 of the first pressing mechanism of the machining clamp is higher than that of the clamping groove seat 201 of the second pressing mechanism. As another example, in the embodiment shown in fig. 4 and 5, the clamping groove seat 201 of the first pressing mechanism and the clamping groove seat 201 of the second pressing mechanism of the machining fixture can be applied to a machining fixture with coaxial parts, and the clamping groove seats are of the same height.

In some embodiments, referring to fig. 1-5, the processing fixture further includes a lateral pushing mechanism 300, where the lateral pushing mechanism 300 is disposed on top of the base plate 100 and located on at least one side of the pressing mechanism 200, and the lateral pushing mechanism 300 is used to push the workpiece from the side of the pressing mechanism 200. Specifically, the lateral tightening mechanism 300 includes a fixed block connected to the base plate 100 and a spring-loaded bead 302 provided on the fixed block 301. After the workpiece is placed on the processing clamp, the workpiece is automatically pushed and positioned laterally by the spring poking beads 302.

The driving member 205 may employ a reciprocating driving member such as an oil cylinder or an air cylinder or an electric cylinder, or may employ a rotary driving member such as a motor, which further converts the rotary feed into the reciprocating feed of the drawbar 203 through a crank link mechanism or a cam mechanism. In some embodiments, referring to fig. 1, 2, 4 and 5, a cushion block 101 is disposed at the bottom of the base plate 100, the cushion block 101 is used for cushioning the base plate 100 and supporting a driving piece 205 and a workbench fixed on a machine tool, the driving piece 205 includes a driving cylinder disposed at the bottom of the base plate 100, a pull rod 203 passes through the base plate 100 and is connected with an output end of the driving cylinder, and a control valve 102 for controlling the driving cylinder is disposed on the base plate 100. In the specific operation process, the workpiece can be pressed by manually pressing the button of the control valve 102, and then the starting button of the machine tool is started to process the workpiece.

In the description of the present specification, reference to the terms "example," "embodiment," or "some embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The present utility model is, of course, not limited to the above-described embodiments, and one skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the utility model, and these equivalent modifications or substitutions are intended to be included in the scope of the present utility model as defined in the claims.

Claims

1. The utility model provides a processing anchor clamps, its characterized in that includes hold-down mechanism, hold-down mechanism includes draw-in groove seat, briquetting, pull rod and driving piece, the top terminal surface of draw-in groove seat forms the holding surface, the pull rod connect in the briquetting, the pull rod with the briquetting forms T shape subassembly, the bottom terminal surface of briquetting in the both sides of pull rod form the holding surface, driving piece is used for the drive the pull rod drives the briquetting removes in order to press from both sides the work piece between the holding surface with the holding surface.

2. The machining fixture of claim 1, wherein the pull rod is connected with the pressing block through a pin shaft, the pressing block is provided with a first pin shaft hole, one end of the pull rod connected with the pressing block is provided with a second pin shaft hole, and the pin shaft is installed in the first pin shaft hole and the second pin shaft hole and rotationally connects the pull rod with the pressing block.

3. The machining fixture according to claim 2, wherein the pressing block is provided with a pull rod mounting hole perpendicular to the first pin shaft hole, one end of the pull rod connected with the pressing block is embedded into the pull rod mounting hole and connected with the pressing block through the pin shaft, and the pull rod can rotate around the pin shaft in a certain range in the pull rod mounting hole.

4. The machining fixture of claim 2, wherein the pin is removably mounted to the first pin bore and the second pin bore.

5. The processing fixture of claim 1, wherein the compression surface of the press block is provided with a first V-shaped groove, and the support surface of the clamping groove seat is provided with a second V-shaped groove at a position corresponding to the first V-shaped groove.

6. The machining fixture of claim 5, wherein the hold-down mechanism comprises a first hold-down mechanism and a second hold-down mechanism, the position of the first V-shaped groove of the first hold-down mechanism corresponds to the position of the first V-shaped groove of the second hold-down mechanism, and the position of the second V-shaped groove of the first hold-down mechanism corresponds to the position of the second V-shaped groove of the second hold-down mechanism.

7. The machining fixture of claim 6, wherein the clamping groove seat of the first pressing mechanism and the clamping groove seat of the second pressing mechanism have the same height.

8. The machining fixture of claim 6, wherein the clamping groove seat of the first pressing mechanism and the clamping groove seat of the second pressing mechanism have different heights.

9. The machining fixture of claim 1, further comprising a bottom plate and a lateral tightening mechanism, wherein the clamping groove seat is arranged on the bottom plate, the lateral tightening mechanism is arranged on the top of the bottom plate and is positioned on at least one side of the pressing mechanism, the lateral tightening mechanism is used for tightening a workpiece from the side of the pressing mechanism, and the lateral tightening mechanism comprises a fixed block connected with the bottom plate and a spring poking bead arranged on the fixed block.

10. The machining fixture of claim 9, wherein a cushion block is arranged at the bottom of the bottom plate, the driving piece comprises a driving cylinder arranged at the bottom of the bottom plate, the pull rod penetrates through the bottom plate to be connected with the output end of the driving cylinder, and a control valve for controlling the driving cylinder is arranged on the bottom plate.