Clamping fixture

Abstract

The utility model belongs to the technical field of workpiece clamping, and discloses a clamping fixture. The clamping fixture comprises a base, a fixture body and a fixing assembly. The base is configured to be connected with processing equipment; the clamp main body is detachably connected with the base; the clamp main body is provided with at least two positioning grooves; the fixing assembly comprises at least one first fixing piece and at least one second fixing piece. The clamp main body is provided with at least two positioning grooves, so that at least two workpieces can be clamped and limited and can be processed by processing equipment, and the production efficiency can be improved. The clamp body is detachably connected with the base, so that the clamp body and the workpiece can be conveniently and quickly replaced, and the production efficiency can be further improved. According to the installation positions of the multiple workpieces, the first fixing piece and the second fixing piece are matched, the installation time can be shortened while firm installation is guaranteed, and the production efficiency is further improved. And the first fixing piece and the second fixing piece are detachably connected with the clamp body, so that the workpiece is convenient to disassemble and assemble.

Description

Technical Field

[0001] The utility model relates to the technical field of workpiece clamping, in particular to a clamping fixture. Background Art

[0002] During the workpiece machining process, it is often necessary to limit and fix the workpiece to be machined to ensure that the position of the workpiece does not change during the machining process and to ensure the stability of the workpiece.

[0003] At present, clamping fixtures are usually used to limit and fix workpieces. However, existing clamping fixtures can usually only clamp one workpiece. For workpieces that need to be produced in large quantities, only clamping one workpiece at a time for processing is a waste of production resources, increasing the frequency of pauses of processing equipment and the downtime waiting time of processing equipment, resulting in low production efficiency.

[0004] Therefore, a clamping fixture is urgently needed to solve the above technical problems. Utility Model Content

[0005] The utility model aims to provide a clamping fixture, which reduces the pause frequency of processing equipment and the downtime waiting time of processing equipment, and has high production efficiency.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] A clamping fixture, comprising:

[0008] a base configured to be connected to a processing device;

[0009] A fixture body is detachably connected to the base; the fixture body is provided with at least two positioning grooves, the positioning grooves are used to place the workpiece and limit the position of the workpiece, and the bottom of the positioning groove is configured to fit with the fixing portion of the workpiece;

[0010] The fixing assembly includes at least one first fixing member and at least one second fixing member, wherein the first fixing member and the second fixing member are both detachably connected to the clamp body, each of the first fixing member can be tightly pressed against the fixing portions of at least two of the workpieces, and each of the second fixing member can be tightly pressed against the fixing portion of one of the workpieces.

[0011] Preferably, there are four positioning grooves, which are distributed at intervals in the circumferential direction; there are five first fixing members, one of which is a main fixing member, which is arranged in the middle of the four positioning grooves and can be tightly pressed against the fixing parts of the four workpieces; the other four first fixing members are all slave fixing members, which are distributed at intervals in the circumferential direction, and each of which can be tightly pressed against the fixing parts of two adjacent workpieces; there are four second fixing members, which are distributed at intervals in the circumferential direction, and can be tightly pressed against the fixing parts of the four workpieces respectively.

[0012] Preferably, the clamping fixture further comprises at least two fixing frame groups, the fixing frame groups comprise abutment members and locking members, the locking members are connected to the base, the locking members press the abutment members against the fixture body and press the abutment members against the base.

[0013] Preferably, the abutment member can be tightly pressed against the top surface of the clamp body.

[0014] Preferably, the depth of the positioning groove is smaller than the thickness of the fixing portion of the workpiece, and both the first fixing member and the second fixing member can be tightly pressed against the fixing portion.

[0015] Preferably, the bottom of the first fixing member and the bottom of the second fixing member can both be tightly pressed against the top surface of the fixing portion.

[0016] Preferably, the groove sidewalls of the positioning groove are configured to conform to and fit closely with the sidewalls of the fixing portion.

[0017] Preferably, the fixing assembly further comprises a plurality of fasteners, the first fixing member and the second fixing member are both provided with waist-shaped holes, and the fasteners pass through the waist-shaped holes and are threadedly connected to the first internal threaded holes of the clamp body.

[0018] Preferably, the bottom of the positioning groove is provided with an avoidance groove for avoiding the tail of the workpiece.

[0019] Preferably, a handle is provided on the clamp body.

[0020] Beneficial effects of the utility model:

[0021] The clamping fixture provided by the utility model includes a base, a fixture body and a fixing assembly. By arranging at least two positioning grooves on the fixture body, at least two workpieces can be clamped and limited, and used for processing by processing equipment, thereby reducing the pause frequency of the processing equipment and the downtime waiting time of the processing equipment, and improving production efficiency. The fixture body is detachably connected to the base, which facilitates the rapid replacement of the fixture body and the workpiece, further improving production efficiency. According to the installation positions of multiple workpieces, the first fixing member and the second fixing member are adapted to ensure firm installation while reducing installation time, further improving production efficiency. The first fixing member and the second fixing member are both detachably connected to the fixture body, which facilitates the disassembly and assembly of workpieces. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the workpiece involved in the utility model;

[0023] Figure 2 This is a first structural schematic diagram of the clamping fixture provided by the utility model;

[0024] Figure 3 It is a second structural schematic diagram of the clamping fixture provided by the utility model;

[0025] Figure 4 It is a top view of the clamping fixture provided by the utility model;

[0026] Figure 5 It is a structural schematic diagram of the clamp body involved in the utility model;

[0027] Figure 6 It is a structural schematic diagram of a base involved in the utility model.

[0028] In the figure:

[0029] 1. Base; 11. Second internal threaded hole; 12. Groove;

[0030] 2. Clamp body; 21. Positioning groove; 22. Avoidance groove; 23. First internal thread hole; 24. Positioning hole; 25. Clamp origin center hole; 26. Handle;

[0031] 3. Fixing assembly; 31. Main fixing member; 32. Slave fixing member; 33. Second fixing member; 34. Fastener; 35. Waist-shaped hole;

[0032] 4. Fixed frame assembly; 41. Abutment member; 42. Locking member;

[0033] 5. Positioning pin;

[0034] 100, workpiece; 101, part to be processed; 102, fixed part; 103, tail part. DETAILED DESCRIPTION

[0035] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0036] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0038] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0039] like Figures 1 to 6 As shown, the utility model provides a clamping fixture for clamping a workpiece 100, such as Figure 1As shown, the workpiece 100 includes a to-be-processed portion 101, a fixed portion 102 and a tail portion 103 which are sequentially arranged, and the fixed portion 102 is used to cooperate with a clamping fixture for clamping. The clamping fixture includes a base 1, a fixture body 2 and a fixing assembly 3, the base 1 is configured to be connected to a processing device; the fixture body 2 is detachably connected to the base 1; the fixture body 2 is provided with at least two positioning grooves 21, the positioning grooves 21 are used to place the workpiece 100 and limit the position of the workpiece 100, and the bottom of the positioning groove 21 is configured to fit with the fixed portion 102 of the workpiece 100, so as to support the workpiece 100; the fixing assembly 3 includes at least one first fixing member and at least one second fixing member 33, the first fixing member and the second fixing member 33 are both detachably connected to the fixture body 2, each first fixing member can be tightly pressed against the fixed portion 102 of at least two workpieces 100, and each second fixing member 33 can be tightly pressed against the fixed portion 102 of one workpiece 100. By setting at least two positioning grooves 21 in the fixture body 2, at least two workpieces 100 can be clamped and limited, and used for processing by processing equipment, which reduces the pause frequency and downtime waiting time of the processing equipment, and can improve production efficiency. The design of multiple workpieces is used to extend the continuous operation time of the processing equipment, reduce the frequency of pauses, thereby improving the use efficiency of the processing equipment, and the man-hours saved can be invested in other work. The fixture body 2 is detachably connected to the base 1, which facilitates the rapid replacement of the fixture body 2 and the workpiece 100, further improving production efficiency. According to the installation positions of multiple fixings, the first fixing member and the second fixing member 33 are adapted to ensure that the installation is firm while reducing the installation time, further improving production efficiency. The first fixing member and the second fixing member 33 are both detachably connected to the fixture body 2, which facilitates the disassembly and assembly of the workpiece 100.

[0040] During installation, place the workpiece 100 in the positioning groove 21 so that the fixing portion 102 fits with the bottom of the positioning groove 21, then adapt the appropriate first fixing member and the second fixing member 33, install the first fixing member and the second fixing member 33 on the fixture body 2, fix multiple workpieces 100, and finally connect the fixture body 2 to the base 1.

[0041] Optionally, in this embodiment, there are four positioning grooves 21, which are spaced apart circumferentially, and there are five first fixing members, one of which is a main fixing member 31, which is arranged in the middle of the four positioning grooves 21 and can be pressed against the fixing parts 102 of the four workpieces 100; the other four first fixing members are all secondary fixing members 32, which are spaced apart circumferentially, and each secondary fixing member 32 can be pressed against the fixing parts 102 of two adjacent workpieces 100; there are four second fixing members 33, which are spaced apart circumferentially and can be pressed against the fixing parts 102 of the four workpieces 100 respectively. The four positioning grooves 21 are spaced apart circumferentially, which is convenient for processing and compact in structure. The main fixing member 31 is pressed against the fixing parts 102 of the four workpieces 100, the four secondary fixing members 32 are pressed against the fixing parts 102 of two adjacent workpieces 100, and the four second fixing members 33 are pressed against the fixing parts 102 of the four workpieces 100. This arrangement reduces the installation time compared to each fixing member being pressed against only one workpiece 100. In addition, the workpieces 100 are circumferentially fixed at four positions to ensure the stability of the four workpieces 100 during processing. Specifically, in this embodiment, the main fixing member 31 is a cross structure, the secondary fixing member 32 is a long strip structure, and the second fixing member 33 is a long strip structure. This arrangement is simple in structure and convenient for processing.

[0042] Optionally, in this embodiment, the depth of the positioning groove 21 is less than the thickness of the fixing portion 102 of the workpiece 100, and the first fixing member and the second fixing member 33 can both abut against the fixing portion 102. With such a configuration, the workpiece 100 is more securely fixed. In other embodiments, the depth of the positioning groove 21 can also be greater than the thickness of the fixing portion 102 of the workpiece 100, and abutting portions extending in the depth direction of the positioning groove 21 are provided at the ends of the first fixing member and the second fixing member 33, and the abutting portions abut against the fixing portion 102.

[0043] Optionally, in this embodiment, if Figure 2 As shown, the bottom of the first fixing member and the bottom of the second fixing member 33 can both be pressed against the top surface of the fixing portion 102. With such a configuration, the workpiece 100 is subjected to downward pressure, the workpiece 100 is fixed more securely, and the workpiece 100 is prevented from tilting. Specifically, the bottom of the first fixing member and the bottom of the second fixing member 33 are both provided with a step groove, and the groove surface of the step groove is pressed against the top surface of the fixing portion 102, saving materials. Optionally, in other embodiments, the side wall of the first fixing member and the side wall of the second fixing member 33 can both be pressed against the side wall of the fixing portion 102, as long as the fixation of the workpiece 100 can be achieved, and it is not limited to this embodiment.

[0044] Alternatively, if Figure 2As shown, the fixing assembly 3 also includes a plurality of fasteners 34. The first fixing member and the second fixing member 33 are both provided with waist-shaped holes 35. The waist-shaped holes 35 provided on the first fixing member are Figure 2 Not shown in the figure, the fastener 34 passes through the waist-shaped hole 35 and is threadedly connected with the first internal thread hole 23 of the clamp body 2. Such a configuration is convenient for installation, and the fastener 34 can be installed according to the actual position of the first internal thread hole 23 on the clamp body 2. Specifically, the fastener 34 is an M8 screw.

[0045] Optionally, in this embodiment, if Figure 3 As shown, the groove sidewall of the positioning groove 21 is configured to follow the shape and fit with the sidewall of the fixing portion 102, so that the fixing portion 102 of the workpiece 100 is completely fitted with the groove sidewall of the positioning groove 21. This design method can not only improve the positioning accuracy of the workpiece 100, but also improve the quality of the workpiece 100. Optionally, in other embodiments, the groove sidewall of the positioning groove 21 can be matched with the sidewall of the fixing portion 102 in multi-point contact or multi-surface contact. Specifically, the positioning groove 21 can be circular or in other shapes, as long as it can limit the fixing portion 102 of the workpiece 100, and is not limited to this embodiment.

[0046] Optionally, in this embodiment, if Figure 5 As shown, the bottom of the positioning groove 21 is provided with an avoidance groove 22 for avoiding the tail 103 of the workpiece 100. The avoidance groove 22 is provided for avoiding.

[0047] Optionally, in this embodiment, if Figure 3 As shown, the clamping fixture also includes at least two fixing frame groups 4, and the fixing frame group 4 includes an abutment 41 and a locking member 42. The locking member 42 is connected to the base 1, and the locking member 42 makes the abutment 41 abut against the fixture body 2, and makes the abutment 41 abut against the base 1. Through the cooperation of the abutment 41 and the locking member 42, the fixture body 2 is fixed on the base 1, which can reduce the damage to the fixture body 2, and the structure is simple and easy to install. Specifically, the abutment 41 can abut against the top surface of the fixture body 2. In this way, the fixture body 2 is subjected to downward pressure, and the fixture body 2 is fixed more securely. Optionally, in this embodiment, the locking member 42 is an M12 screw, and the locking member 42 passes through the abutment 41 and is threadedly connected to the second internal threaded hole 11 of the base 1. Optionally, in this embodiment, the abutment 41 is an L-shaped structure. Furthermore, a long hole is provided on the L-shaped structure, which can adapt to the clamp body 2 of different sizes, or facilitate adjustment, and the locking member 42 can be installed according to the actual position of the second internal threaded hole 11 on the base 1.

[0048] Optionally, in other embodiments, the abutment 41 is a long strip structure, the bottom of the abutment 41 is pressed against the top surface of the base 1, and one end of the abutment 41 is pressed against the side wall of the clamp body 2. As long as the clamp body 2 can be fixed, it is not limited to this embodiment.

[0049] Optionally, in this embodiment, if Figures 3 to 5 As shown, the fixture body 2 is provided with two positioning holes 24 which are staggered, and the base 1 is correspondingly provided with two grooves 12. The clamping fixture also includes two positioning pins 5, which are inserted into the positioning holes 24 and the grooves 12. In this way, when the fixture body 2 is installed, the fixture body 2 is positioned. Specifically, the positioning pin 5 is a φ10 pin. Optionally, the fixture body 2 is also provided with a fixture origin center hole 25, which is convenient for finding the origin when processing the workpiece 100.

[0050] In addition, a handle 26 is provided on the fixture body 2. The handle 26 is provided to facilitate the movement of the fixture body 2. Specifically, two handles 26 are provided on opposite sides of the fixture body 2. In this way, the stability of movement is ensured when a person moves the fixture body 2. Optionally, the clamping fixture is made of wear-resistant material to prevent the clamping fixture from being worn or deformed during use, thereby ensuring the positioning accuracy and quality of the workpiece 100.

[0051] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A clamping fixture, characterized in that: include: A base (1) configured to be connected to a processing device; A fixture body (2) is detachably connected to the base (1); the fixture body (2) is provided with at least two positioning grooves (21), the positioning grooves (21) are used to place the workpiece (100) and limit the position of the workpiece (100), and the bottom of the positioning groove (21) is configured to fit with the fixing part (102) of the workpiece (100); The fixing assembly (3) comprises at least one first fixing member and at least one second fixing member (33), wherein the first fixing member and the second fixing member (33) are both detachably connected to the clamp body (2), each of the first fixing members can be tightly pressed against the fixing portions (102) of at least two of the workpieces (100), and each of the second fixing members (33) can be tightly pressed against the fixing portion (102) of one of the workpieces (100).

2. The clamping fixture according to claim 1, characterized in that: There are four positioning grooves (21), and the four positioning grooves (21) are distributed at intervals in the circumferential direction. There are five first fixing members, one of which is a main fixing member (31), and the main fixing member (31) is arranged in the middle of the four positioning grooves (21), and can be pressed against the fixing parts (102) of the four workpieces (100); the other four first fixing members are all secondary fixing members (32), and the four secondary fixing members (32) are distributed at intervals in the circumferential direction, and each secondary fixing member (32) can be pressed against the fixing parts (102) of two adjacent workpieces (100); there are four second fixing members (33), and the four second fixing members (33) are distributed at intervals in the circumferential direction, and can be pressed against the fixing parts (102) of the four workpieces (100) respectively.

3. The clamping fixture according to claim 1, characterized in that: The clamping fixture further comprises at least two fixing frame groups (4), wherein the fixing frame group (4) comprises a contact member (41) and a locking member (42), wherein the locking member (42) is connected to the base (1), and the locking member (42) causes the contact member (41) to be pressed against the fixture body (2), and causes the contact member (41) to be pressed against the base (1).

4. The clamping fixture according to claim 3, characterized in that: The abutment member (41) can be tightly abutted against the top surface of the clamp body (2).

5. The clamping fixture according to claim 1, characterized in that: The depth of the positioning groove (21) is less than the thickness of the fixing portion (102) of the workpiece (100), and both the first fixing member and the second fixing member (33) can be tightly pressed against the fixing portion (102).

6. The clamping fixture according to claim 5, characterized in that: The bottom of the first fixing member and the bottom of the second fixing member (33) can both be tightly pressed against the top surface of the fixing portion (102).

7. The clamping fixture according to any one of claims 1 to 6, characterized in that: The groove side wall of the positioning groove (21) is configured to conform to and fit closely to the side wall of the fixing portion (102).

8. The clamping fixture according to any one of claims 1 to 6, characterized in that: The fixing assembly (3) further comprises a plurality of fasteners (34), the first fixing member and the second fixing member (33) are both provided with waist-shaped holes (35), and the fasteners (34) pass through the waist-shaped holes (35) and are threadedly connected to the first internal threaded holes (23) of the clamp body (2).

9. The clamping fixture according to any one of claims 1 to 6, characterized in that: The bottom of the positioning groove (21) is provided with an avoidance groove (22) for avoiding the tail portion (103) of the workpiece (100).

10. The clamping fixture according to any one of claims 1 to 6, characterized in that: The clamp body (2) is provided with a handle (26).

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