Supporting and positioning device

Abstract

The supporting and positioning device comprises a supporting piece, a positioning body, a positioning assembly and a driving assembly. The top face of the supporting piece is used for being supported below an inner hole of a workpiece. The positioning main body comprises a positioning head which is arranged above the top surface and is inserted into the inner hole; the positioning assembly comprises a first positioning piece and a second positioning piece, and the first positioning piece is movably arranged on the positioning head and provided with a first positioning end. The second positioning piece is movably arranged on the positioning head and provided with a second positioning end for moving to be close to / away from the first positioning end, and when the first positioning end and the second positioning end are close to each other, the positioning assembly is arranged in the inner hole with a gap. The first positioning end and the second positioning end abut against the inner wall of the inner hole to position the workpiece when being far away from each other. The driving assembly is connected with the first positioning piece and the second positioning piece so as to drive the first positioning piece and the second positioning piece to move. When the supporting and positioning device is used for supporting and positioning a workpiece, the occupied space is small, and operation is easy and convenient.

Description

Technical Field

[0001] The present disclosure relates to the technical field of workpiece support and positioning, and in particular to a support and positioning device. Background Art

[0002] In the related art, when supporting and positioning a workpiece, such as automobile chassis parts, it is usually necessary to arrange a positioning device and a supporting device at two different positions respectively, and use the positioning device and the supporting device to perform positioning operations and support operations on the workpiece respectively. This method results in cumbersome operations when positioning and supporting the workpiece, and occupies a large external space. Summary of the invention

[0003] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a supporting and positioning device, which occupies a small space and is easy to operate when supporting and positioning a workpiece.

[0004] The supporting and positioning device provided by the present disclosure includes: a supporting member, the top surface of which is supported below the inner hole of a workpiece; a positioning body, including a positioning head arranged above the top surface and inserted into the inner hole; a positioning component, including: a first positioning member, movably arranged on the positioning head, and having a first positioning end; a second positioning member, movably arranged on the positioning head, and having a second positioning end for moving closer to / away from the first positioning end, and when the first positioning end and the second positioning end are close to each other, the positioning component is built into the inner hole with a gap; when the first positioning end and the second positioning end are away from each other, they are respectively abutted against the inner wall of the inner hole to position the workpiece; and a driving component, connected to the first positioning member and the second positioning member, to drive the first positioning member and the second positioning member to move.

[0005] According to some embodiments of the present disclosure, the middle portion of the first positioning member and the middle portion of the second positioning member are rotatably disposed on the positioning head and are disposed opposite to each other and spaced apart;

[0006] The driving assembly includes: a pushing member, which is vertically movably arranged between the first positioning member and the second positioning member to push the first positioning member and the second positioning member to rotate up and down during vertical movement to make the first positioning end and the second positioning end approach / move away.

[0007] According to some embodiments of the present disclosure, the driving assembly also includes: a lifting member, the top of which is used to support the pushing member; a lifting driving member connected to the lifting member and used to drive the lifting member to move up and down, so that the lifting member drives the pushing member to move upward; an elastic member, provided between the positioning head and the pushing member, and used to provide an elastic force to the pushing member to move downward and return to a reset position.

[0008] According to some embodiments of the present disclosure, the pusher is freely rollably disposed on the top of the lifter, and the positioning head is formed with a sliding hole;

[0009] The driving assembly also includes: a pressing member, which is slidably matched with the sliding hole and connected to the elastic member, so as to press the pushing member on the lifting member under the action of elastic force when the positioning assembly is not positioned, and to stop and match with the top wall of the sliding hole when the positioning assembly is positioned.

[0010] According to some embodiments of the present disclosure, the first positioning member is provided with a first concave surface, and the second positioning member is provided with a second concave surface. The first concave surface and the second concave surface are linked with the outer curved surface of the pushing member to surround the outside of the pushing member.

[0011] According to some embodiments of the present disclosure, the pressing member includes a pressing head for pressing the pushing member;

[0012] The first positioning member and the second positioning member are respectively provided with a first limiting notch and a second limiting notch, and when the pushing member moves downward to the reset position, the first limiting notch and the second limiting notch are limitedly covered on the outer peripheral surface of the pressing head.

[0013] According to some embodiments of the present disclosure, the lifting member has a lifting head for supporting the pushing member; and the first positioning member and the second positioning member are respectively provided with a first limiting notch and a second limiting notch, and when the pushing member moves to a predetermined position, the first limiting notch and the second limiting notch are limited and covered on the outer peripheral surface of the lifting head.

[0014] According to some embodiments of the present disclosure, the positioning body further includes: a mounting seat, which is disposed below the positioning head and on which the support member is mounted with an adjustable mounting height.

[0015] According to some embodiments of the present disclosure, an adjustable number of height-adjusting members are provided between the mounting seat and the support member.

[0016] According to some embodiments of the present disclosure, a cavity and a first extension opening and a second extension opening communicating with the cavity are formed in the positioning head;

[0017] The first positioning end and the second positioning end are respectively retracted at the first extension opening and the second extension opening when approaching each other, and are respectively extended at the first extension opening and the second extension opening when moving away from each other.

[0018] Beneficial Effects

[0019] (1) The supporting and positioning device disclosed in the present invention occupies a small space and is easy to operate when supporting and positioning a workpiece.

[0020] (2) The supporting and positioning device disclosed in the present invention has a compact structure, occupies a small space and has low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the working state of the supporting and positioning device of the embodiment of the present disclosure.

[0022] Figure 2 It is a schematic structural diagram of the supporting and positioning device of an embodiment of the present disclosure.

[0023] Figure 3 It is a cross-sectional view of the supporting positioning device of the embodiment of the present disclosure when it is not positioned.

[0024] Figure 4 It is a cross-sectional view of the supporting positioning device of the embodiment of the present disclosure when being positioned.

[0025] Reference numerals:

[0026] 11. support member; 111. top surface; 1101. connection hole;

[0027] 12, positioning body; 121, positioning head; 1201, cavity; 1202, first extension port; 1203, second extension port; 1204, sliding hole; 122, mounting seat; 123, first rotating shaft; 124, second rotating shaft;

[0028] 13. Positioning assembly; 131. first positioning member; 1311. first positioning end; 1312. first concave surface; 1313. first limiting notch; 1314. first limiting notch; 132. second positioning member; 1321. second positioning end; 1322. second concave surface; 1323. second limiting notch; 1324. second limiting notch;

[0029] 14. driving assembly; 141. pushing member; 142. lifting member; 1421. lifting head; 143. elastic member; 144. pressing member; 1441. pressing head; 1442. sliding part; 1443. force-bearing part; 145. lifting driving member;

[0030] 15. Height adjustment parts;

[0031] 16. Wear-resistant sleeve;

[0032] 900, workpiece; 901, inner hole. DETAILED DESCRIPTION

[0033] The following is an explanation of the embodiments of the present disclosure by specific examples, and those skilled in the art can easily understand other advantages and effects of the present disclosure from the information disclosed by the present disclosure. The present disclosure can also be implemented or applied through other different specific embodiments, and the details in the present disclosure can also be modified or changed in various ways according to different viewpoints and application modules without departing from the spirit of the present disclosure. It should be noted that the embodiments in the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0034] The following is a detailed description of the embodiments of the present disclosure with reference to the accompanying drawings so that those skilled in the art can easily implement the present disclosure. The present disclosure can be embodied in many different forms and is not limited to the embodiments described herein.

[0035] In the representations of the present disclosure, the reference terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" and the like mean that the specific features, structures, materials or characteristics represented in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. Moreover, the specific features, structures, materials or characteristics represented may be combined in any one or a group of embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples represented in the present disclosure and the features of different embodiments or examples, unless they are mutually contradictory.

[0036] In addition, 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. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the representation of the present disclosure, "a group" means two or more, unless otherwise clearly and specifically defined.

[0037] In order to clearly describe the present disclosure, components not related to the description are omitted, and the same reference numerals are given to the same or similar components throughout the specification.

[0038] Throughout the specification, when a device is said to be "connected" to another device, this includes not only the case of "direct connection" but also the case of "indirect connection" by placing other elements therebetween. In addition, when a device is said to "include" a certain component, unless otherwise stated, it does not exclude other components, but means that other components may be included.

[0039] Although the terms first, second, etc. are used to represent various elements in this article in some examples, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. For example, the first interface and the second interface, etc. are represented. Moreover, as used in this article, the singular forms "one", "one" and "the" are intended to also include plural forms, unless there is an opposite indication in the context. It should be further understood that the terms "comprising" and "including" indicate that there are the described features, steps, operations, elements, modules, projects, kinds, and / or groups, but do not exclude the existence, occurrence or addition of one or a group of other features, steps, operations, elements, modules, projects, kinds, and / or groups. The terms "or" and "and / or" used herein are interpreted as inclusive, or mean any one or any combination. Therefore, "A, B or C" or "A, B and / or C" means "any of the following: A; B; C; A and B; A and C; B and C; A, B and C". Only when the combination of elements, functions, steps or operations is inherently mutually exclusive in some way, will there be an exception to this definition.

[0040] The technical terms used herein are only used to refer to specific embodiments and are not intended to limit the present disclosure. The singular form used herein also includes the plural form unless the sentence clearly indicates the contrary meaning. The meaning of "including" used in the specification is to specify specific characteristics, regions, integers, steps, operations, elements and / or components, and does not exclude the existence or addition of other characteristics, regions, integers, steps, operations, elements and / or components.

[0041] Although not defined differently, all terms, including technical and scientific terms used herein, have the same meaning as those generally understood by those skilled in the art to which the present disclosure belongs. Terms defined in commonly used dictionaries are additionally interpreted as having meanings consistent with relevant technical literature and the message of the present disclosure, and shall not be overly interpreted as ideal or very formal meanings unless defined.

[0042] In the related art, when supporting and positioning a workpiece, such as automobile chassis parts, a positioning device and a supporting device need to be arranged at two different positions respectively, and the positioning device and the supporting device are used to perform positioning operations and support operations on the workpiece respectively. This method results in cumbersome operations when positioning and supporting the workpiece, and occupies a large external space.

[0043] In view of this, the present disclosure provides a supporting and positioning device, which can support and position a workpiece, is easy to operate, and occupies a small external space.

[0044] Figure 1 It is a schematic diagram of the working state of the supporting and positioning device of the embodiment of the present disclosure. Figure 2Schematic diagram of the structure of the supporting and positioning device of the embodiment of the present disclosure. Figure 1 and Figure 2 The supporting and positioning device disclosed in the present invention includes a supporting member 11, a positioning body 12, a positioning assembly 13 and a driving assembly 14.

[0045] The top surface 111 of the support member 11 is supported below the inner hole 901 of the workpiece 900. In other words, when the support positioning device is working, the top surface 111 of the support member 11 is supported on the lower end surface of the inner hole 901 of the workpiece 900, thereby supporting the workpiece 900.

[0046] The positioning body 12 includes a positioning head 121 disposed above the top surface 111 and inserted into the inner hole 901. Thus, when the top surface 111 of the support member 11 is supported below the inner hole 901 of the workpiece 900, the positioning head 121 is inserted into the inner hole 901.

[0047] Optionally, the positioning body 12 further includes a mounting seat 122. The mounting seat 122 is disposed below the positioning head 121 and is provided for mounting the support member 11 with an adjustable mounting height. Thus, when the mounting height of the support member 11 is increased, the height of the workpiece 900 supported by the support member 11 is higher. When the mounting height of the support member 11 is decreased, the height of the workpiece 900 supported by the support member 11 is lower. Thus, the support and positioning device disclosed in the present invention can support the workpiece 900 at different heights to meet different processing requirements of the workpiece 900.

[0048] Optionally, a height adjusting member 15 with an adjustable number of height adjusting members 15 is provided between the support member 11 and the mounting seat 122. Thus, when a large number of height adjusting members 15 are installed, the installation height of the support member 11 is high. When a small number of height adjusting members 15 are installed, the installation height of the support member 11 is low.

[0049] Specifically, the height-adjusting member 15 is implemented as a gasket, so when a large number of the gaskets are installed, for example, two, three or four gaskets are installed, the installation height of the support member 11 is high, and the height of the rear workpiece 900 supported by the support member 11 is also high. When a small number of the height-adjusting members 15 are installed, for example, there is only one gasket or no gasket is installed, the installation height of the support member 11 is low, and the height of the rear workpiece 900 supported by the support member 11 is also low.

[0050] Optionally, the support member 11 is sleeved outside the positioning head 121. The height adjusting member 15 is sleeved outside the positioning head 121, installed above the mounting seat 122, and carries the support member 11.

[0051] The support and positioning device also includes a connecting member. The connecting member passes through the connecting hole 1101 of the support member 11 and the height adjusting member 15 and is detachably installed in the mounting seat 122. Specifically, the connecting member is implemented as a screw, and the screw passes through the connecting hole 1101 of the support member 11 and the height adjusting member 15 and is threadedly installed in the mounting seat 122. As a result, the support member 11 and the mounting seat 122 can be installed as a whole to ensure the overall stability of the support and positioning device, and because the support member 11 and the height adjusting member 15 are easy to install and disassemble, the installation quantity of the height adjusting member 15 is also easy to adjust.

[0052] Figure 3 It is a cross-sectional view of the supporting positioning device of the embodiment of the present disclosure when it is not positioned. Figure 4 2 is a cross-sectional view of the supporting and positioning device of the embodiment of the present disclosure when it is positioned. Figure 2 , Figure 3 and Figure 4 The positioning assembly 13 includes a first positioning member 131 and a second positioning member 132. The first positioning member 131 is movably disposed on the positioning head 121 and has a first positioning end 1311. The second positioning member 132 is movably disposed on the positioning head 121 and has a second positioning end 1321 for moving closer to or away from the first positioning end 1311. Figure 3 As shown, when the first positioning end 1311 and the second positioning end 1321 are close to each other, the positioning assembly 13 is built into the inner hole 901 with a gap. Figure 4 As shown, when the first positioning end 1311 and the second positioning end 1321 are away from each other, the first positioning end 1311 and the second positioning end 1321 respectively abut against the inner wall of the inner hole 901 to position the workpiece 900 .

[0053] In other words, when the positioning assembly 13 does not position the workpiece 900, the first positioning end 1311 and the second positioning end 1321 move closer to each other, that is, the first positioning end 1311 and the second positioning end 1321 move closer to each other. Figure 3 In the state shown, at this time, the outer diameter of the positioning assembly 13 is reduced, and the positioning assembly 13 is fitted in the inner hole 901 with clearance. Therefore, when the positioning head 121 enters the inner hole 901 of the workpiece 900, driven by the positioning head 121, the positioning assembly 13 can enter the inner hole 901 with clearance. After the positioning head 121 is placed in the inner hole 901, the first positioning end 1311 and the second positioning end 1321 move away from each other, that is, the first positioning end 1311 and the second positioning end 1321 move away from each other as shown in FIG. Figure 4The state shown is used to expand the outer diameter of the positioning assembly 13 so that the first positioning end 1311 and the second positioning end 1321 can respectively abut against the inner wall of the inner hole 901, thereby positioning the workpiece 900 from inside the inner hole 901.

[0054] Optionally, a cavity 1201 and a first extension opening 1202 and a second extension opening 1203 communicating with the cavity 1201 are formed in the positioning head 121. The first positioning end 1311 and the second positioning end 1321 are respectively contracted at the first extension opening 1202 and the second extension opening 1203 when approaching each other. The first positioning end 1311 and the second positioning end 1321 are respectively extended from the first extension opening 1202 and the second extension opening 1203 when moving away from each other.

[0055] Therefore, when the positioning assembly 13 does not position the workpiece 900, the first positioning member 131 and the second positioning member 132 can be well protected inside the positioning head 121, occupying a small space, convenient for storage, and convenient for the positioning assembly 13 to be subsequently installed into the inner hole 901 along with the positioning head 121. After the positioning head 121 is placed inside the inner hole 901, the first positioning end 1311 and the second positioning end 1321 extend out of the first extension port 1202 and the second extension port 1203 respectively, until the first positioning end 1311 and the second positioning end 1321 respectively abut against the inner wall of the inner hole 901, thereby achieving positioning of the workpiece 900.

[0056] The driving assembly 14 is connected to the first positioning member 131 and the second positioning member 132 to drive the first positioning member 131 and the second positioning member 132 to move, thereby making the first positioning end 1311 and the second positioning end 1321 approach or move away from each other.

[0057] Therefore, the supporting and positioning device disclosed in the present invention can support the workpiece 900 at the location of the inner hole 901 of the workpiece 900, and can position the workpiece 900 from inside the inner hole 901. The supporting and positioning operations of the workpiece 900 are convenient and occupy little external space.

[0058] Optionally, the middle part of the first positioning member 131 and the middle part of the second positioning member 132 are rotatably arranged on the positioning head 121, and are arranged oppositely and spaced apart. Optionally, the positioning body 12 is provided with a first rotating shaft 123 and a second rotating shaft 124 that are arranged in parallel and spaced apart. The middle part of the first positioning member 131 can be rotatably sleeved on the outside of the first rotating shaft 123 around the first rotating shaft 123. The middle part of the second positioning member 132 can be rotatably sleeved on the outside of the second rotating shaft 124 around the second rotating shaft 124.

[0059] The driving assembly 14 includes a pusher 141. The pusher 141 is vertically movable and disposed between the first positioning member 131 and the second positioning member 132, so as to drive the first positioning member 131 and the second positioning member 132 to rotate up and down during vertical movement, so as to make the first positioning end 1311 and the second positioning end 1321 approach or move away from each other.

[0060] Specifically, when the pushing member 141 moves upward, the pushing member 141 pushes the first positioning member 131 and the second positioning member 132 to rotate downward, thereby driving the first positioning end 1311 and the second positioning end 1321 away from each other. When the pushing member 141 moves downward, the pushing member 141 pushes the first positioning member 131 and the second positioning member 132 to rotate upward, thereby driving the first positioning end 1311 and the second positioning end 1321 to move closer to each other.

[0061] Optionally, the driving assembly 14 includes a lifting member 142, an elastic member 143 and a lifting driving member 145. The top of the lifting member 142 is used to carry the pushing member 141. The lifting driving member 145 is connected to the lifting member 142 and is used to drive the lifting driving member 145 to move up and down so that the lifting member 142 lifts the pushing member 141. The elastic member 143 is connected between the positioning head 121 and the pushing member 141 to drive the pushing member 141 to move down and reset to the reset position.

[0062] Thus, when the lifting member 142 lifts the pushing member 141 upward, the pushing member 141 moves upward, thereby driving the first positioning end 1311 and the second positioning end 1321 to move away from each other and respectively abut against the inner wall of the inner hole 901, and in this process, the elastic member 143 is compressed. After the positioning is completed, when the lifting member 142 is no longer lifted, the elastic member 143 drives the lifted pushing member 141 to move downward and reset, thereby driving the first positioning end 1311 and the second positioning end 1321 to rotate closer, thereby facilitating the positioning assembly 13 to withdraw from the inner hole 901.

[0063] Optionally, the outer peripheral surface of the pusher 141 is formed with an outer curved surface, the first positioning member 131 is provided with a first concave curved surface 1312, and the second positioning member 132 is provided with a second concave curved surface 1322, and the first concave curved surface 1312 and the second concave curved surface 1322 are linked with the pusher 141 to surround the outside of the outer curved surface. Thus, when the pusher 141 moves upward, the pusher 141 pushes the first concave curved surface 1312 and the second concave curved surface 1322 upward, so that the first positioning end 1311 and the second positioning end 1321 rotate away. When the pusher 141 moves downward, the pusher 141 pushes the first concave curved surface 1312 and the second concave curved surface 1322 downward, so that the first positioning end 1311 and the second positioning end 1321 rotate closer. The pusher 141 can drive the first positioning end 1311 and the second positioning end 1321 to rotate closer or farther, and has a compact structure, small space occupation, and low cost.

[0064] Optionally, see Figure 4 The lifting member 142 has a lifting head 1421 for carrying the pushing member 141. The first positioning member 131 and the second positioning member 132 are respectively provided with a first limiting notch 1314 and a second limiting notch 1324, and when the pushing member 141 moves up to a predetermined position, the first limiting notch 1314 and the second limiting notch 1324 are limitedly covered on the outer peripheral surface of the lifting head 1421, thereby, the lifting head 1421 limits the first positioning member 131 and the second positioning member 132 from continuing to rotate downward, so that the first positioning end 1311 and the second positioning end 1321 can rotate to a predetermined state away from each other, and remain in the predetermined state away from each other, ensuring that the first positioning end 1311 and the second positioning end 1321 can be stably positioned inside the inner hole 901 of the workpiece 900.

[0065] Optionally, the lifting driving member 145 is configured as a driving cylinder. The piston rod of the driving cylinder is connected to the lifting member 142 to drive the lifting member 142 to move up and down.

[0066] Optionally, the lifting member 142 is detachably connected to the lifting driving member 145. Thus, the lifting member 142 is convenient to be disassembled and installed, and is convenient for replacement and maintenance.

[0067] Optionally, the pusher 141 is freely rollably arranged on the top of the lifting member 142. The positioning head 121 is formed with a sliding hole 1204. The driving assembly 14 further includes a pressing member 144. The pressing member 144 is slidably matched with the sliding hole 1204 and is connected to the elastic member 143, so as to press the pusher 141 on the lifting member 142 under the action of elastic force when the positioning assembly 13 is not positioned, and to stop and match with the top wall of the sliding hole 1204 when the positioning assembly 13 is positioned.

[0068] Thus, when the positioning assembly 13 is not positioned, under the elastic action of the elastic member 143, the pressing member 144 can firmly press the pushing member 141 onto the lifting member 142, and the pushing member 141 can remain stable and difficult to move, so that the first positioning member 131 and the second positioning member 132 can be relatively stably maintained in an unpositioned state. When the positioning assembly 13 is positioned, due to the cooperation between the pressing member 144 and the stopper of the top wall of the slide hole 1204, the lifting member 142 can firmly press the pushing member 141 onto the bottom of the pressing member 144, and the pushing member 141 can also remain stable and difficult to move, so that the first positioning member 131 and the second positioning member 132 can be relatively stably maintained in a positioned state. And because the pushing member 141 is freely rotatably arranged on the top of the lifting member 142, when the pushing member 141 pushes the first positioning member 131 and the second positioning member 132 to rotate, the pushing member 141 can roll and is difficult to be stuck between the first positioning member 131 and the second positioning member 132, for example, stuck between the first concave surface 1312 and the second concave surface 1322, which is conducive to ensuring that the first positioning member 131 and the second positioning member 132 are pushed smoothly.

[0069] Optionally, the pushing member 141 may be a roller or a rolling ball with a circular cross-section. Of course, it is understandable that the pushing member 141 may also be fixed on the top of the lifting member 142 .

[0070] Optionally, see Figure 3 The pressing member 144 includes a pressing head 1441 for pressing the pushing member 141. The first positioning member 131 and the second positioning member 132 are respectively provided with a first limiting notch 1313 and a second limiting notch 1323, and when the pushing member 141 moves downward and resets to the reset position, the first limiting notch 1313 and the second limiting notch 1323 are covered on the outer peripheral surface of the pressing head 1441.

[0071] Therefore, when the pushing member 141 is reset to the reset position, the pressing head 1441 limits the first positioning member 131 and the second positioning member 132 from continuing to rotate upward, so that the first positioning end 1311 and the second positioning end 1321 remain in a predetermined state of being close to each other, and avoid the first positioning member 131 and the second positioning member 132 from being too close to each other and colliding with each other.

[0072] Optionally, the pressing member 144 further includes a sliding portion 1442 and a force-bearing portion 1443. The sliding portion 1442 is slidably fitted in the sliding hole 1204. The force-bearing portion 1443 extends radially outward along the sliding portion 1442 and is provided to abut against the elastic member 143 to bear the elastic force provided by the elastic member 143.

[0073] Optionally, the positioning body 12 is provided with a wear-resistant sleeve 16 for sleeved on the outside of the lifting member 142. Therefore, during the lifting process of the lifting member 142, the wear-resistant sleeve 16 can limit and guide the lifting member 142, which is conducive to ensuring that the lifting member 142 moves vertically, and can protect the positioning body 12 and avoid wear of the positioning body 12.

[0074] Optionally, the wear-resistant sleeve 16 is detachably connected to the positioning body 12. Thus, the wear-resistant sleeve 16 is convenient to disassemble and install, and is convenient for replacement and maintenance.

[0075] The above embodiments are merely illustrative of the principles and effects of the present disclosure, and are not intended to limit the present disclosure. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present disclosure. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed in the present disclosure shall still be covered by the protection scope of the present disclosure.

Claims

1. A supporting and positioning device, characterized in that: include: A support member, the top surface of which is supported below the inner hole of the workpiece; A positioning body, comprising a positioning head disposed above the top surface and inserted into the inner hole; Positioning components, including: A first positioning member, movably disposed on the positioning head and having a first positioning end; A second positioning member is movably disposed on the positioning head and has a second positioning end for moving closer to or farther from the first positioning end, and when the first positioning end and the second positioning end are close to each other, the positioning assembly is provided to be built into the inner hole with a gap; when the first positioning end and the second positioning end are away from each other, they are respectively provided to abut against the inner wall of the inner hole to position the workpiece; and A driving assembly is connected to the first positioning member and the second positioning member to drive the first positioning member and the second positioning member to move.

2. The supporting and positioning device according to claim 1, characterized in that: The middle part of the first positioning member and the middle part of the second positioning member are arranged on the positioning head so as to be rotatable up and down, and are arranged opposite to each other and at intervals; The driving assembly includes: a pushing member, which is vertically movably arranged between the first positioning member and the second positioning member to push the first positioning member and the second positioning member to rotate up and down during vertical movement to make the first positioning end and the second positioning end approach / move away.

3. The supporting and positioning device according to claim 2, characterized in that: The drive assembly also includes: A lifting member, the top of which is used to carry the pushing member; A lifting driving member connected to the lifting member and used to drive the lifting member to move up and down, so that the lifting member drives the pushing member to move upward; The elastic member is arranged between the positioning head and the pushing member, and is used for providing elastic force to the pushing member to move downward and return to the reset position.

4. The supporting and positioning device according to claim 3, characterized in that: The pushing member is freely rollably arranged on the top of the lifting member, and the positioning head is formed with a sliding hole; The driving assembly also includes: a pressing member, which is slidably matched with the sliding hole and connected to the elastic member, so as to press the pushing member on the lifting member under the action of elastic force when the positioning assembly is not positioned, and to stop and match with the top wall of the sliding hole when the positioning assembly is positioned.

5. The supporting and positioning device according to claim 4, characterized in that: The first positioning member is provided with a first concave curved surface, and the second positioning member is provided with a second concave curved surface. The first concave curved surface and the second concave curved surface are linked and cooperated with the outer curved surface of the pushing member to surround the outside of the pushing member.

6. The supporting and positioning device according to claim 4, characterized in that: The pressing member includes a pressing head for pressing the pushing member; The first positioning member and the second positioning member are respectively provided with a first limiting notch and a second limiting notch, and when the pushing member moves downward to the reset position, the first limiting notch and the second limiting notch are limitedly covered on the outer peripheral surface of the pressing head.

7. The supporting and positioning device according to claim 3, characterized in that: The lifting member has a lifting head for carrying the pushing member; The first positioning member and the second positioning member are respectively provided with a first limiting notch and a second limiting notch, and when the pushing member moves up to a predetermined position, the first limiting notch and the second limiting notch are limitedly covered on the outer peripheral surface of the lifting head.

8. The supporting and positioning device according to claim 1, characterized in that: The positioning body further comprises: a mounting seat, which is arranged below the positioning head and on which the support member is mounted with adjustable mounting height.

9. The supporting and positioning device according to claim 8, characterized in that: An adjustable number of height-adjusting members are arranged between the mounting seat and the supporting member.

10. The supporting and positioning device according to claim 1, characterized in that: The positioning head is formed with a cavity and a first extension opening and a second extension opening communicated with the cavity; The first positioning end and the second positioning end are respectively retracted at the first extension opening and the second extension opening when approaching each other, and are respectively extended at the first extension opening and the second extension opening when moving away from each other.

Images