Sand blasting clamp

Abstract

The utility model discloses a sand blasting clamp. The sand blasting clamp comprises a chassis; the number of the positioning mechanisms is at least two, the two positioning mechanisms are circumferentially arranged on the base plate, each positioning mechanism comprises a two-way lead screw, a nut seat and a positioning rod, the two-way lead screws are rotationally arranged below the base plate, the nut seats are arranged at the two ends of the two-way lead screws respectively, and the positioning rods are arranged on the nut seats. The positioning rods are arranged on the nut seat and arranged above the base plate in a penetrating mode, the two-way lead screw rotates to enable the nut seat to drive the positioning rods to be close to each other or away from each other, and a cover plate is arranged above the two-way lead screw and arranged on the nut seat in a sliding and penetrating mode. The sand blasting clamp can be suitable for products of round, oval and rectangular structures and the like, the application range is expanded, the sand blasting clamp can adapt to the sand blasting operation and other environments with serious sand dust, a screw rod is prevented from being damaged by sand grains, and meanwhile the situation that a large number of sand grains fall into threads of the screw rod, and consequently the screw rod is blocked is prevented.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sand blasting equipment, in particular to a sand blasting clamp. BACKGROUND

[0002] Since a large amount of sand dust is generated in the process of sand blasting, and the sand dust has a very adverse effect on mechanical transmission, the clamp used in the sand blasting at present is a relatively simple and rough four-rod screw column which clamps a small turntable through upper and lower nuts to implement positioning and fixing of the product for sand blasting. The clamp structure has a simple structure and low manufacturing cost, so many sand blasting machine manufacturers take it as a standard configuration and sell it. However, in actual application, the clamp has many disadvantages, such as: the screw thread in the screw rod is easily worn by sand or the sand is easily trapped in the bottom of the screw thread to cause difficulty in adjusting the screw column; the four screw columns in the clamp need to be adjusted separately, and a lot of clamp adjustment time is consumed when switching the sand blasting product, thereby increasing the waiting time of the machine. Therefore, in order to avoid the shortcomings of the existing sand blasting clamp, it is necessary to design and innovate the clamp to avoid the above-mentioned problems. CONTENT OF THE UTILITY MODEL

[0003] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application provides a sand blasting clamp which can independently adjust the positioning rods of the group through the bidirectional screw rod, so as to be applicable to products with circular, oval and rectangular structures, thereby expanding the use range.

[0004] The sand blasting clamp according to the embodiment of the present application comprises a base plate, at least two groups of positioning mechanisms, the two groups of positioning mechanisms being circumferentially arranged on the base plate, each group of positioning mechanisms comprising a bidirectional screw rod, a nut seat and a positioning rod, the bidirectional screw rod being rotationally arranged below the base plate, the nut seat being arranged at both ends of the bidirectional screw rod, the positioning rod being arranged on the nut seat and penetrating the base plate above, the bidirectional screw rod being rotated to make the nut seat drive the positioning rods to approach or move away from each other, and a cover plate being arranged above the bidirectional screw rod and slidingly penetrating the nut seat.

[0005] The sand blasting clamp according to the embodiment of the present application has at least the following beneficial effects: the bidirectional screw rod is arranged in each group of positioning mechanisms, and the positioning rod is arranged on the nut seat which can cooperate with the bidirectional screw rod, so that the positioning rods of the group can be independently adjusted through the bidirectional screw rod, the clamp is applicable to products with circular, oval and rectangular structures, and the use range is expanded; the cover plate is arranged above the bidirectional screw rod, so that the clamp can adapt to the environment with serious sand dust such as sand blasting operation, prevent the screw rod from being damaged by sand particles, prevent a large amount of sand particles from falling into the screw thread of the screw rod to cause jamming, and prolong the service life of the bidirectional screw rod.

[0006] The sand blasting clamp according to the embodiment of the present application, the base is provided with a support, the bidirectional screw rod is rotatably arranged on the support, and the cover plate is arranged through the nut seat and connected with the support.

[0007] The sand blasting clamp according to the embodiment of the present application, the cover plate comprises a top plate and a side plate, the nut seat is provided with a screw hole, the bidirectional screw rod is connected with the screw hole, an installation hole is arranged above the screw hole, the cover plate is arranged through the installation hole and connected with the support.

[0008] The sand blasting clamp according to the embodiment of the present application, the cover plate comprises a top plate and a side plate, the side plate is arranged on both sides of the top plate and extends towards one side of the bidirectional screw rod, so that the cover plate has a U-shaped structure.

[0009] The sand blasting clamp according to the embodiment of the present application, the screw hole is provided with an opening, and the opening faces downward.

[0010] The sand blasting clamp according to the embodiment of the present application, the base is provided with a shaft sleeve, the shaft sleeve is used for being connected with a rotating shaft, and the bidirectional screw rod is arranged through the shaft sleeve.

[0011] The sand blasting clamp according to the embodiment of the present application, one end of the bidirectional screw rod is provided with a hexagonal head, the hexagonal head is arranged through the support, and the hexagonal head is used for being driven to rotate by a hexagonal tool.

[0012] The sand blasting clamp according to the embodiment of the present application, the support is provided with a protective cover, and the protective cover covers the hexagonal head.

[0013] The sand blasting clamp according to the embodiment of the present application, the top of the positioning rod is provided with a bent portion, and the bent portion is bent outward.

[0014] The sand blasting clamp according to the embodiment of the present application, the bottom of the positioning rod is provided with a plunger, the plunger is provided with a fixing hole, the positioning rod is arranged through the fixing hole and locked by a fastening screw.

[0015] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0016] The present application will be further described below in conjunction with the drawings and embodiments, wherein:

[0017] Figure 1 It is a first perspective view of the sand blasting clamp according to the embodiment of the present application;

[0018] Figure 2A second perspective view of the sandblasting fixture according to an embodiment of the present application;

[0019] Figure 3 A structure diagram of the positioning rod in the sandblasting fixture according to an embodiment of the present application;

[0020] Figure 4 A structure diagram of the cover plate in the sandblasting fixture according to an embodiment of the present application.

[0021] Reference signs:

[0022] Chassis 100; support 110; shaft sleeve 120; protective cover 130; positioning mechanism 200; bidirectional screw rod 210; hex head 211; nut seat 220; screw hole 221; mounting hole 222; opening 223; positioning rod 230; bent part 231; plunger 232; cover plate 240; top plate 241; side plate 242; folded part 423. DETAILED DESCRIPTION

[0023] The embodiments of the present application are described in detail below with reference to the accompanying drawings. The embodiments described below are exemplary only, and are not intended to be limiting of the present application. Rather, the present application is to be afforded the broadest scope of the principles described below, and the embodiments are merely examples of the present application.

[0024] In the description of the present application, it should be understood that, in relation to the orientation description, for example, the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, and is only for the purpose of facilitating the description of the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0025] In the description of the present application, the meaning of several is one or more, the meaning of multiple is two or more, greater than, less than, more than, etc. are understood as not including the number, above, below, etc. are understood as including the number. If it is described as first, second, etc., it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of technical features indicated.

[0026] In the description of the present application, unless otherwise explicitly defined, the words such as arrangement, installation, connection, etc. should be understood broadly, and the skilled in the art can determine the specific meaning of the words in the present application in combination with the specific content of the technical solution. In the description of the present application, the description referring to the terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the present application. In the description of the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In the description of the present application, the description referring to the terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the present application. In the description of the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0027] With reference to Figures 1 to 4 The present application provides a sand blasting clamp, comprising: a base plate 100; a positioning mechanism 200, at least two groups are provided, the two groups of positioning mechanisms 200 are circumferentially arranged on the base plate 100, each group of positioning mechanisms 200 comprises a bidirectional screw rod 210, a nut seat 220 and a positioning rod 230, the bidirectional screw rod 210 is rotationally arranged below the base plate 100, the nut seat 220 is arranged at both ends of the bidirectional screw rod 210 respectively, and the positioning rod 230 is arranged on the nut seat 220 and penetrates above the base plate 100, the bidirectional screw rod 210 is rotated to make the nut seat 220 drive the positioning rod 230 to approach or move away from each other, and a cover plate 240 is arranged above the bidirectional screw rod 210 and penetrates the nut seat 220.

[0028] By arranging the bidirectional screw rod 210 in each group of positioning mechanisms 200 and arranging the positioning rod 230 on the nut seat 220 which can cooperate with the bidirectional screw rod 210, the positioning rod 230 in the group can be independently adjusted by the bidirectional screw rod 210, which is suitable for products with circular, oval and rectangular structures, and expands the use range; by arranging the cover plate 240 above the bidirectional screw rod 210, the cover plate 240 can adapt to the environment with serious sand dust such as sand blasting operation, prevent the screw rod from being damaged by sand particles, prevent the screw rod from being stuck due to a large amount of sand particles falling into the screw thread, and prolong the service life of the bidirectional screw rod 210.

[0029] The base plate 100 is provided with a support 110, both ends of the bidirectional screw rod 210 are rotatably arranged on the support 110, and the cover plate 240 is arranged through the nut seat 220 and connected with the support 110, so that the installation of the bidirectional screw rod 210 and the cover plate 240 is facilitated, and the structure is simple.

[0030] With reference to Figures 1 to 4 Further, the nut seat 220 is provided with a screw hole 221, the bidirectional screw rod 210 is connected with the screw hole 221 in a matched mode, the upper portion of the screw hole 221 is provided with a mounting hole 222, and the cover plate 240 is arranged through the mounting hole 222. By arranging the mounting hole 222 above the screw hole 221, the cover plate 240 can be arranged through the nut seat 220, which does not affect the movement of the nut seat 220, and the cover plate 240 can completely block the screw rod, thereby improving the stability and safety. The cover plate 240 comprises a top plate 241 and a side plate 242, the side plate 242 is arranged on both sides of the top plate 241 and extends towards the side of the bidirectional screw rod 210, so that the cover plate 240 has a U-shaped structure. By arranging the cover plate 240 in a U-shaped structure, the protection of the bidirectional screw rod 210 can be further improved, and the stability and reliability of the work can be improved. It is easy to understand that both ends of the top plate 241 are provided with folding portions 423 upward, so as to facilitate the fixation and installation of the cover plate 240, and the operation is simple.

[0031] It should be noted that the cover plate 240 can also be arranged as an organ cover plate 240, one end of the cover plate 240 is connected with the support 110, and the other end is connected with the nut seat 220. The nut seat 220 moves under the action of the rotation of the bidirectional screw rod 210, so that the organ cover plates 240 on both sides thereof are respectively retracted and expanded, thereby playing a role in protecting the bidirectional screw rod 210.

[0032] With reference to Figure 3 In the embodiment, the screw hole 221 is provided with an opening 223, the opening 223 faces downward, so that the sand dust entering the nut seat 220 can be quickly discharged from the opening 223 in rotation, thereby avoiding the phenomenon that the rotation friction between the bidirectional screw rod 210 and the nut seat 220 is increased or even blocked due to a large amount of accumulation, and ensuring the smoothness of the rotation.

[0033] With reference to Figure 1 and Figure 2 In some embodiments of the present application, the base plate 100 is provided with a shaft sleeve 120, the shaft sleeve 120 is used to be connected with a rotating shaft, and the bidirectional screw rod 210 is arranged through the shaft sleeve 120. In use, the shaft sleeve 120 only needs to be sleeved on the corresponding rotating shaft of the sand blasting machine and locked, so that the installation of the sand blasting clamp can be realized, and at this time, the product can be clamped and subjected to sand blasting work through the sand blasting clamp, so that the structure is simple and the operation is simple.

[0034] It is conceivable that one end of the bidirectional screw rod 210 is provided with a hexagonal head 211, the hexagonal head 211 is arranged in the support 110, and the hexagonal head 211 is used to drive the bidirectional screw rod 210 to rotate in cooperation with a hexagonal tool. Among them, the hexagonal head 211 is arranged as an outer hexagonal head 211, and the hexagonal tool matched with it is arranged as a hexagonal sleeve. The hexagonal sleeve is sleeved on the outer hexagonal head 211, and then the hexagonal sleeve is rotated to realize the rotation of the bidirectional screw rod, and then the spacing adjustment between the positioning rods 230 is realized, which is simple in structure and convenient to operate. Further, the support 110 is provided with a protective cover 130, the protective cover 130 covers the hexagonal head 211, which can avoid the wear of the outer hexagonal head 211 during the sand blasting process, thereby affecting the cooperation between the outer hexagonal head 211 and the hexagonal sleeve during adjustment, ensuring the stability of the work, prolonging the service life, and reducing the production cost.

[0035] Of course, the hexagonal head 211 can also be arranged as an inner hexagonal head 211, and at this time the hexagonal tool is arranged as an inner hexagonal wrench. The inner hexagonal wrench is inserted into the inner hexagonal head 211, and then the inner hexagonal wrench is pulled to realize the rotation of the bidirectional screw rod 210, thereby realizing the spacing adjustment between the positioning rods 230, which is simple in structure and convenient to operate.

[0036] It should be noted that a handle or a hand wheel can also be arranged at one end of the bidirectional screw rod 210, and the present application does not limit this.

[0037] Reference Figures 1 to 3 In some embodiments of the present application, the top of the positioning rod 230 is provided with a bending portion 231 which is bent outward, thereby playing a certain guiding role, and also preventing the top of the positioning rod 230 from scratching the product and improving the product quality. It is easy to understand that the bottom of the positioning rod 230 is provided with a plunger 232 which is connected with the nut seat 220. Specifically, the plunger 232 is provided with a fixing hole, and the positioning rod 230 is arranged in the fixing hole and locked by a fastening screw, so as to realize the disassembly and assembly of the positioning rod 230, which is simple and convenient to operate.

[0038] The embodiments of the present application are described in detail above in combination with the drawings, but the present application is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range of ordinary skilled persons in the art without departing from the purpose of the present application.

Claims

1. A sandblasting fixture, characterized in that, The utility model relates to a positioning mechanism, including: Chassis; Positioning mechanism is at least provided with two groups, two groups of positioning mechanism circumferential setting is in the chassis, each group positioning mechanism includes two -way screw rod, nut seat and positioning rod, two -way screw rod rotation setting is below the chassis, nut seat is set up respectively in both ends of two -way screw rod, positioning rod sets up nut seat and is worn above the chassis, two -way screw rod rotation makes nut seat drive positioning rod mutually close or mutually far away, two -way screw rod top is provided with cover plate, cover plate sliding is worn in nut seat and is connected with the support.

2. The sandblasting fixture of claim 1, wherein, The chassis is provided with a support, and the two-way screw rod is rotationally arranged on the support.

3. The sandblasting fixture of claim 2, wherein, The nut seat is provided with a screw hole, and the two-way screw rod is connected with the screw hole.

4. The sandblasting fixture of claim 3, wherein, The cover plate includes a top plate and a side plate, and the side plate is arranged on both sides of the top plate and extends towards one side of the two-way screw rod, so that the cover plate has a U-shaped structure.

5. The sandblasting fixture of claim 3, wherein, The screw hole is provided with an opening, and the opening faces downward.

6. The sandblasting fixture of claim 2, wherein, The chassis is provided with a shaft sleeve for connecting with a rotating shaft, and the two-way screw rod is arranged in the shaft sleeve.

7. The sandblasting fixture of claim 6, wherein, One end of the two-way screw rod is provided with a hexagonal head, the hexagonal head is arranged in the support, and the hexagonal head is used for cooperating with a hexagonal tool to drive the two-way screw rod to rotate.

8. The sandblasting fixture of claim 7, wherein, The support is provided with a protective cover, and the protective cover covers the hexagonal head.

9. The sandblasting fixture of claim 1, wherein, The top of the positioning rod is provided with a bending portion, and the bending portion is bent outward.

10. The sandblasting fixture of claim 1, wherein, The bottom of the positioning rod is provided with a plunger, the plunger is provided with a fixing hole, the positioning rod is arranged in the fixing hole and locked by a fastening screw.

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