Part clamping platform capable of achieving clearance compensation

Abstract

The utility model relates to a part clamping platform capable of realizing clearance compensation, which comprises an adjusting rod, an adjusting block, a sliding block, a cover plate and a bottom plate, a bayonet is formed at one end of a long through groove, and a positioning fixture block can pass through the bayonet in a first angle range and can be clamped by the bayonet in a second angle range; when the positioning clamping block corresponds to a first angle range, the spring is not compressed, the adjusting block is pushed to axially move along the adjusting rod under the action of elastic pre-tightening force, the sliding blocks are driven to slide upwards, and all the sliding blocks can protrude out of the cover plate to form floating support; after the adjusting rod is axially moved, the adjusting rod is rotated, when the positioning clamping block corresponds to a second angle range, the positioning clamping block is clamped by the clamping opening, the spring is compressed, the sliding block loses supporting force and slides into the through hole of the cover plate under the action of no elastic pre-tightening force, and floating supporting is canceled. The floating compensation supporting device can play a floating compensation supporting effect on parts, and clearance compensation during part clamping is achieved. The problem that a hollow structure of an easily-deformed part lacks stability during positioning is solved, and meanwhile, a positioning and supporting method is provided for the situation that a part with a complex appearance structure is difficult to clamp and position.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing, in particular to a parts clamping platform capable of realizing gap compensation. Background Art

[0002] Before machining, the blank needs to be placed on the machine tool workbench. For parts that are easy to deform, the parts are prone to deformation such as bending and twisting during the machining process. There will be a gap between the ideal positioning surface and the actual positioning surface, resulting in a hollow structure and lack of stability when the parts are positioned. For parts with more complex shapes, there are defects such as small positioning surfaces and difficult clamping. Some protruding structures such as ears and bosses seriously affect the positioning effect. Usually, a form-fitting fixture is made to meet the clamping requirements. However, the form-fitting fixture has poor versatility, and different special fixtures need to be made according to different parts, which is time-consuming and labor-intensive. Utility Model Content

[0003] Purpose of the utility model: The utility model provides a parts clamping platform that can realize gap compensation. When the limit handle is rotated to release the limit, the deformation energy stored in the compression spring is released and acts on the horizontal wedge block, pushing the horizontal wedge block to move. At the same time, the longitudinal sliding block that cooperates with it moves longitudinally under the action of the horizontal wedge block, passes through the limit hole of the top plate and acts on the parts, thereby supporting the parts and realizing gap compensation when the parts are clamped.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] Provided is a parts clamping platform capable of realizing gap compensation, comprising an adjusting rod, an adjusting block, a sliding block, a cover plate and a bottom plate;

[0006] The cover plate is provided with a plurality of through holes, the bottom plate is provided with a plurality of parallel long through slots, and a plurality of partitions are fixed in each long through slot, so that each long through slot is divided into a plurality of short slots;

[0007] The cover plate can be covered on the bottom plate to form an adapting structure, and the through holes of the cover plate correspond to the short slots of the bottom plate one by one;

[0008] Each through hole of the cover plate is shaped to be matched with a slider, so that the slider can slide up and down;

[0009] The adjusting rod is a smooth rod, the adjusting block is provided with a through hole, each adjusting rod passes through a plurality of through holes of the adjusting blocks, a plurality of springs are also arranged on each adjusting rod, each spring corresponds to an adjusting block and provides elastic pre-tightening force to the adjusting block, and a plurality of push pieces are also fixed at intervals on the adjusting rod, each push piece corresponds to an adjusting block, and the adjusting rod is moved axially, and the push piece can push the corresponding adjusting block to move axially as a whole; one end of the adjusting rod is a handle, and a positioning block is fixed on the front end of the handle;

[0010] Each of the adjusting rods can be rotatably positioned in one of the long through slots, and each of the adjusting block, the corresponding spring and the push piece corresponds to a short slot and is accommodated and limited by the short slot. Axial movement of the adjusting rod can cause the adjusting block to move in the axial direction, and the adjusting block and the partition plate compress the corresponding spring. The upper end surface of the adjusting block is an inclined surface, and the lower end surface of the slider is an inclined surface, and the inclined surface of the adjusting block and the inclined surface of the slider are slidably matched with each other, so that the slider can slide up and down as the adjusting block moves axially.

[0011] A bayonet is formed at one end of the long through slot, and the positioning block can pass through the bayonet in a first angle range and can be stopped by the bayonet in a second angle range;

[0012] When the positioning block corresponds to the first angle range, the spring is not compressed, and the adjustment block is pushed to move axially along the adjustment rod under the action of the elastic preload force, driving the slider to slide upward, and all the sliders can protrude from the cover plate to form a floating support; after the adjustment rod is moved axially and rotated, when the positioning block corresponds to the second angle range, the positioning block is stopped by the bayonet, the spring is compressed, and without the action of the elastic preload force, the slider loses its supporting force and slides into the through hole of the cover plate, thereby canceling the floating support.

[0013] Furthermore, the through hole is a square through hole.

[0014] Furthermore, the through holes and short slots are arranged in a matrix.

[0015] Furthermore, the push piece is detachably mounted and can be fixed on the adjusting rod according to the position and compression stroke requirements of the spring.

[0016] Furthermore, the adjusting rod has a slot on its upper travel, and the slot can be used for installing and positioning the push piece and / or the spring.

[0017] Furthermore, the spring is a coil spring.

[0018] Furthermore, the adjusting block and the sliding block are both wedge blocks.

[0019] Furthermore, the cover plate and the bottom plate are fixedly connected via threaded holes 8 and screws 1 .

[0020] This device releases deformation energy through compression springs to provide power for the movement of the adjustment block. Through the small angle cooperation between the adjustment block and the slider, the horizontal force is converted into a longitudinal force, so that the longitudinal slider acts on the part, thereby realizing the gap compensation in the part clamping process.

[0021] In the initial state, the compression spring is in a compressed state, and part of the deformation energy has been stored. The longitudinal slider is located in the limit hole of the cover plate (the upper top surface can be flush with the top surface of the cover plate). When in use, rotate the limit handle so that the limit block on the limit handle is in the limit groove in the bottom plate. At this time, under the action of the compression spring, the adjustment block moves horizontally, and under the action of the wedge angle, the slider moves upward, passes through the through hole of the cover plate and contacts the part. By converting horizontal force into longitudinal force, it plays a role in gap compensation for the clamping of parts.

[0022] Beneficial effects of the utility model

[0023] The utility model can provide a floating compensation support effect for parts, realize gap compensation when parts are clamped, solve the problem that the hollow structure of deformable parts lacks stability when positioning, and provide a positioning support method for parts with complex external structures that are difficult to clamp and position. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0025] Figure 1 It is a structural schematic diagram of the utility model;

[0026] Figure 2 It is a schematic diagram of the structure of the utility model (with the cover removed);

[0027] Figure 3 It is a schematic diagram of the structure of the installation of the adjusting rod, the adjusting block and the sliding block;

[0028] Figure 4 It is a schematic diagram of the structure of the adjusting rod;

[0029] Figure 5 It is a schematic diagram of the structure of the cover;

[0030] Figure 6 It is a schematic diagram of the structure of the base plate;

[0031] Figure 7 It is the principle diagram of the matching relationship between the adjustment block and the slider;

[0032] In the figure, 1 is a screw, 2 is a cover plate, 3 is an adjusting rod, 4 is a slider, 5 is a spring, 6 is an adjusting block, 7 is a bottom plate, 8 is a threaded hole, 9 is a through hole, 10 is a handle, 11 is a push piece, 12 is a positioning block, 13 is a partition, 14 is a short slot, and 15 is a bayonet. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solution of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0034] Provided is a parts clamping platform capable of realizing gap compensation, comprising an adjusting rod, an adjusting block, a sliding block, a cover plate and a bottom plate;

[0035] The cover plate is provided with a plurality of through holes, the bottom plate is provided with a plurality of parallel long through slots, and a plurality of partitions are fixed in each long through slot, so that each long through slot is divided into a plurality of short slots;

[0036] The cover plate can be covered on the bottom plate to form an adapting structure, and the through holes of the cover plate correspond to the short slots of the bottom plate one by one;

[0037] Each through hole of the cover plate is shaped to be matched with a slider, so that the slider can slide up and down;

[0038] The adjusting rod is a smooth rod, the adjusting block is provided with a through hole, each adjusting rod passes through a plurality of through holes of the adjusting blocks, a plurality of springs are also arranged on each adjusting rod, each spring corresponds to an adjusting block and provides elastic pre-tightening force to the adjusting block, and a plurality of push pieces are also fixed at intervals on the adjusting rod, each push piece corresponds to an adjusting block, and the adjusting rod is moved axially, and the push piece can push the corresponding adjusting block to move axially as a whole; one end of the adjusting rod is a handle, and a positioning block is fixed on the front end of the handle;

[0039] Each of the adjusting rods can be rotatably positioned in one of the long through slots, and each of the adjusting block, the corresponding spring and the push piece corresponds to a short slot and is accommodated and limited by the short slot. Axial movement of the adjusting rod can cause the adjusting block to move in the axial direction, and the adjusting block and the partition plate compress the corresponding spring. The upper end surface of the adjusting block is an inclined surface, and the lower end surface of the slider is an inclined surface, and the inclined surface of the adjusting block and the inclined surface of the slider are slidably matched with each other, so that the slider can slide up and down as the adjusting block moves axially.

[0040] A bayonet is formed at one end of the long through slot, and the positioning block can pass through the bayonet in a first angle range and can be stopped by the bayonet in a second angle range;

[0041] When the positioning block corresponds to the first angle range, the spring is not compressed, and the adjustment block is pushed to move axially along the adjustment rod under the action of the elastic preload force, driving the slider to slide upward, and all the sliders can protrude from the cover plate to form a floating support; after the adjustment rod is moved axially and rotated, when the positioning block corresponds to the second angle range, the positioning block is stopped by the bayonet, the spring is compressed, and without the action of the elastic preload force, the slider loses its supporting force and slides into the through hole of the cover plate, thereby canceling the floating support.

[0042] The through hole is a square through hole.

[0043] The through holes and short slots are arranged in a matrix.

[0044] The push piece is detachably mounted and can be fixed on the adjusting rod according to the position and the compression stroke requirements of the spring.

[0045] The adjusting rod has a slot on its upper stroke, and the slot can be used for installing and positioning the push piece and / or the spring.

[0046] The spring is a coil spring.

[0047] The adjusting block and the sliding block are both wedge blocks.

[0048] The cover plate and the bottom plate are fixedly connected via threaded holes 8 and screws 1 .

[0049] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined in this specification may be implemented in other embodiments without departing from the scope of the present invention. Therefore, the present invention will not be limited to the embodiments described in this specification, but will conform to the broadest scope consistent with the principles and novel features disclosed in this specification.

Claims

1. A parts clamping platform capable of realizing gap compensation, characterized in that: It includes an adjusting rod, an adjusting block, a sliding block, a cover plate and a bottom plate; The cover plate is provided with a plurality of through holes, the bottom plate is provided with a plurality of parallel long through slots, and a plurality of partitions are fixed in each long through slot, so that each long through slot is divided into a plurality of short slots; The cover plate can be covered on the bottom plate to form an adapting structure, and the through holes of the cover plate correspond to the short slots of the bottom plate one by one; Each through hole of the cover plate is shaped to be matched with a slider, so that the slider can slide up and down; The adjusting rod is a smooth rod, the adjusting block is provided with a through hole, each adjusting rod passes through a plurality of through holes of the adjusting blocks, a plurality of springs are also arranged on each adjusting rod, each spring corresponds to an adjusting block and provides elastic pre-tightening force to the adjusting block, and a plurality of push pieces are also fixed at intervals on the adjusting rod, each push piece corresponds to an adjusting block, and the adjusting rod is moved axially, and the push piece can push the corresponding adjusting block to move axially as a whole; one end of the adjusting rod is a handle, and a positioning block is fixed on the front end of the handle; Each of the adjusting rods can be rotatably positioned in one of the long through slots, and each of the adjusting block, the corresponding spring and the push piece corresponds to a short slot and is accommodated and limited by the short slot. Axial movement of the adjusting rod can cause the adjusting block to move in the axial direction, and the adjusting block and the partition plate compress the corresponding spring. The upper end surface of the adjusting block is an inclined surface, and the lower end surface of the slider is an inclined surface, and the inclined surface of the adjusting block and the inclined surface of the slider are slidably matched with each other, so that the slider can slide up and down as the adjusting block moves axially. A bayonet is formed at one end of the long through slot, and the positioning block can pass through the bayonet in a first angle range and can be stopped by the bayonet in a second angle range; When the positioning block corresponds to the first angle range, the spring is not compressed, and the adjustment block is pushed to move axially along the adjustment rod under the action of the elastic preload force, driving the slider to slide upward, and all the sliders can protrude from the cover plate to form a floating support; after the adjustment rod is moved axially and rotated, when the positioning block corresponds to the second angle range, the positioning block is stopped by the bayonet, the spring is compressed, and without the action of the elastic preload force, the slider loses its supporting force and slides into the through hole of the cover plate, thereby canceling the floating support.

2. A parts clamping platform capable of realizing gap compensation according to claim 1, characterized in that: The through hole is a square through hole.

3. A parts clamping platform capable of realizing gap compensation according to claim 1, characterized in that: The through holes and short slots are arranged in a matrix.

4. A parts clamping platform capable of realizing gap compensation according to claim 1, characterized in that: The push piece is detachably mounted and can be fixed on the adjusting rod according to the position and the compression stroke requirements of the spring.

5. A parts clamping platform capable of realizing gap compensation according to claim 1, characterized in that: The adjusting rod has a slot on its upper stroke, and the slot can be used for installing and positioning the push piece and / or the spring.

6. A parts clamping platform capable of realizing gap compensation according to claim 1, characterized in that: The spring is a coil spring.

7. A parts clamping platform capable of realizing gap compensation according to claim 1, characterized in that: The adjusting block and the sliding block are both wedge blocks.

8. The part clamping platform capable of realizing gap compensation according to claim 1, characterized in that: The cover plate and the bottom plate are fixedly connected via threaded holes and screws.

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